Privacy Policy

Version Update Time

Policy Update Date: June 16, 2026

Policy Effective Date: June 16, 2026

"iMusicTheory" is a comprehensive music service product integrating exams, practice, and learning, provided to you by Shenzhen Shumiao Technology Development Co., Ltd. (hereinafter referred to as "Shumiao Technology" or "we"). Shumiao Technology attaches great importance to users' personal information and data. Please read this policy carefully before using all of our products and services, and ensure you understand our rules for processing your personal information. If you have any questions about this privacy policy, you may contact us for consultation. If you do not agree with any terms in this privacy policy, you should stop using this app immediately. Once you choose to use, or continue to use our products and services after this app updates this privacy policy (we will promptly notify you of updates), it means that you recognize and accept all content of this policy (including the updated version), and agree that we may collect, use, store, and share your relevant information in accordance with this policy.

Important Sensitive Information Notice (in accordance with GB/T 35273-2020 Appendix B) This App processes Sensitive Personal Information including but not limited to:phone numbers, ID card numbers, facial recognition biometric features, microphone recording audio, GPS precise geolocation, IMEI/MAC/IMSI and other permanent device hardware identifiers, payment accounts, web browsing behavior logs, and all personal information of minors under fourteen years of age. Once leaked, illegally provided, or abused, the above information can easily endanger your personal and property safety. All sensitive information in this policy is prominently displayed in bold; before collecting any type ofExplicit Separate Consent, we will separately pop up to inform you of the purpose, retention period, and risks. You may withdraw the corresponding authorization at any time. National standard reference link:

https://c.gb688.cn/bzgk/gb/showGb?type=online&hcno=4568F276E0F8346EB0FBA097AA0CE05E

Term Definitions (in accordance with Appendix B of "GB/T 35273-2020 Information Security Technology — Personal Information Security Specification", reference link:

https://c.gb688.cn/bzgk/gb/showGb?type=online&hcno=4568F276E0F8346EB0FBA097AA0CE05E）

1. Personal Information:

Refers to various information recorded electronically or by other means related to identified or identifiable natural persons.

2. Sensitive Personal Information

Personal information that, once leaked, illegally provided, or abused, can easily endanger personal and property safety, or easily lead to damage to personal reputation or discrimination, including but not limited to:ID card numbers, facial recognition and other biometric features, bank card and bank account information, precise geolocation, web browsing trails, recording audio information, phone numbers, immutable device hardware identifiers, and all personal information of minors under fourteen years of age, etc. The specific scope refers to the list set out in Appendix B of the above national standard.

3. Minimum Necessary Principle

We only collect information necessary to implement the corresponding business functions. You have the right to refuse to provide non-essential information, and this will not affect the use of the product's basic learning functions.

I. Information We May Collect

Our products or services provide you with exam and practice content display and answering functions. During this process, we will collect some of your information based on your specific operations when using our products or services, including the following personal information:

1. Device Information

Refers to information about the device you use when using this app's products or services, including device model, device name, browser type and settings, language settings, operating system and application version, network access method, network quality data, mobile network information (including carrier name), product version number, login IP address; variable device identifiers OAID, Android ID (Android), IDFA/IDFV (iOS), used to distinguish guest identity and account security risk control. [Special Note on Sensitive Information]Only in account security verification scenarios, after your separate active consent, will we temporarily read MAC, SIM, IMEI, IMSI; you may refuse such authorization, and refusal will not affect all basic functions such as practice, question bank viewing, and online exercises, and we will not store such permanent hardware sensitive identifiers long-term. To collect the above basic personal device information, we will apply for permission to access your device information and obtain relevant information based on your authorization.

2. Log Information

Refers to information automatically collected by us when you use this app's products and services, stored as relevant operation logs and service logs, including your browsing history, likes/shares/comments/interaction records, favorites/follows, playback history, playback duration, access dates and times.

3. Obtaining Running Processes

When you use our products or services, we will determine the currently running processes on the device to determine whether this App is running in the foreground, so that the App can normally conduct business logic. We only make real-time instantaneous judgments when the app is in the foreground running state. Such judgment data is only processed instantaneously, and no process-related data will be cached, uploaded, or persistently stored, and there is no long-term retention behavior.

4. Location Information

(1) Approximate Regional Information (Non-sensitive):

Used for content regional adaptation. You may turn off location permissions in system settings at any time;

(2) GPS Precise Geolocation (Sensitive Travel Information):

Only used for the "People Nearby" social feature. A separate popup will inform you of the collection purpose and obtain your separate consent; if you turn off location permissions, we will immediately terminate all geolocation collection and will not retain your historical location trails. Real-time information containing your geolocation provided by you or other users, such as your region information contained in your account information, shared information displayed by you or others showing your current or past geolocation, and geotag information contained in photos shared by you or others; you can stop the collection of your geolocation information by turning off the location function.

5. Recording Information

Microphone and recording audio are biometric sensitive personal information, used only for music score recognition by ear and listening mock exam functions; basic functions such as question bank browsing, mistake review, and video course learning do not require microphone permission at all. You may turn off microphone permission at any time, only listening-specific functions will be limited, and all other product services can be used normally. After the App obtains recording information, it is only used for real-time frequency analysis of sound, and no storage or upload operations will be performed on the recording information.

6. Software Installation List

Recently, criminals have used illegal means such as reverse engineering and shell packing to generate pirated "iMusicTheory" Apps, which may cause your personal information to leak and personal rights to be damaged. We only verify this product's "iMusicTheory" own application package name and version information for piracy identification and account security protection; we will not traverse or read other third-party application installation lists in your device, and there is no batch acquisition of application lists.

7. Album and SD Card Content Information

When you use features such as posting, mock exams, or changing your avatar, we need to access your album and SD card to obtain the corresponding image data and establish a cache of exam score data, so that you can access the content faster next time. We collect this information to provide you with our most core service: displaying your exam scores. If you refuse to provide the above permissions, you will only be unable to use posting, avatar changing, and screenshot uploading functions, and basic services such as practice and mock exams can still be used normally. Please note that standalone device information and log information cannot identify your identity.

II. How We Collect and Use Your Personal Information

Below we inform you one by one of the necessary personal information types required for each function, and prompt you for the permissions to be authorized when you use specific functional scenarios.

(I) Providing You with Music Theory Mock Exams, Music Theory Practice, and Mistake Practice Functions

You can use our basic functions as a guest, mainly including mock exams and practice. To ensure the implementation of the above functions and fulfill network system operation security obligations, we will collect your necessary device information (device model, operating system version, variable device identifiers (Android ID, IDFA, IDFV)), assign you an exclusive identifier, and based on this identifier, record your operation information under your guest identity, i.e., your browsing and favorites history, and save it in the form of log files. In addition, during your use, we may apply for storage permission to record your log information and cache content; we may also need to apply for location information to provide you with more precise content.

You can also choose to become a registered platform user to receive higher quality and personalized services. Please note that you have the right to refuse to provide corresponding personal information in the following functions, and your refusal only affects the implementation of specific functions and does not affect your use of our basic functions. We will collect your personal information based on the following purposes:

(II) Helping You Register and Maintain Platform Accounts

1. Basic Account Creation

When you create an account on our platform, to become our member registered user so that we can provide you with registered user member services, you need to provide (1) Phone Number; and create (2) a username, set by yourself within the iMusicTheory APP. The above information is collected to provide you with account login services and ensure your account security. If you refuse to provide Phone Number, you will not be able to complete registration and basic account creation, but this does not affect your normal use of other functions of iMusicTheory.

2. Account Recovery

If you lose your account, you can recover it. If you lose your account password, you can verify via SMS or contact customer service to recover or reset your password. During this process, you need to provide some information to verify your identity. We may need you to provide identity information, phone number, frequent login locations, frequent login devices, frequent listening content, registration time, and city information; to verify your true identity, we may also use facial recognitionto verify your true identity when necessary.

3. Helping You Upload or Publish Information and Videos, Establish Friend Connections

If you upload videos or photos, post comments, messages, or engage in posting activities, according to current laws and regulations, you may also need to provide the following information:

(1) Necessary Real-name Information

a. To ensure content security, avoid suspicious accounts harassing platform users and audiences, and fulfill the legal obligation of purifying cyberspace, we may additionally require users who frequently or in bulk upload spam ads, spam videos, or illegal content, as well as users whose cumulative audio publishing duration reaches a certain amount, to uploadID card numbers, ID card and personal facial photos in the same framefor real-name authentication. If you refuse to provide, we have the right to temporarily close your audio publishing function.

b. According to the requirements of national regulatory authorities, accounts registered overseas need to fully implement real-name system. For this reason, we will additionally require overseas registered account users to provide real-name information, and the video uploading and publishing functions will only be activated for you after platform approval.

The above information is necessary for you to upload and publish audio, video, and information on our platform, but not providing this information does not affect your use of the basic service functions of our platform.

(2) Establishing Friend Connections and Sharing Information

You can establish friend connections and share with each other through our services. When you create communication, transactions, or content sharing through our services, you can choose the target of communication, transactions, or sharing. They will see your member level, nickname public information, and the information content you share and communicate. Public information refers to any information you publicly share, including your comments, posts, replies, your avatar, nickname, and username. The content and information you share when using our services may involve others' personal information. Please confirm that you have obtained lawful authorization from others. At the same time, you have an obligation to properly protect your own personal information and only provide and display your information to others when necessary. If you find your personal information has been leaked, especially if your account or password has been leaked, please contact iMusicTheory customer service immediately.

4. Providing You with Personalized Recommendations and Security Services

To recommend more suitable personalized content to you, optimize search results, show or recommend more relevant (rather than universally pushed) search results and content to you, generate exclusive listening reports for you, understand product adaptability to different hardware devices, ensure operational environment security, and identify abnormal account status, we will collect the following information:

(1) Device Information

We will, based on your specific operations during software installation and use, receive and record your device-related information (including device model, operating system version, device settings, unique device identifiers (Android ID, IDFA, IDFV, UUID), necessary mobile application list information, software and hardware and devices, device environment information, sensor information), and device location-related information (to identify and determine the content copyright of your region, we need to collect your authorized GPS Precise Location (Sensitive Information)as well as WLAN access points and base stations, sensor information).

(2) Log Information

When you use the products or services provided by our website or client, we will automatically collect your detailed usage and save it as network logs. Log information includes your search and browsing history, follows, playback history, purchase and consumption records, traffic, playback duration, IP address, WIFI network, telecom carrier network, language used, and access dates and times.

We will extract your preference features based on the collected information and generate indirect people profiles based on feature tags to display and push personalized content and possible commercial advertisements to you. However, we strive to ensure your product user experience. If you are not interested in our recommended personalized content or wish to no longer receive such personalized services, you can choose to turn it off via "My - Study Reminders".

5. Providing You with VIP Membership or Subscription Services

When you pay for VIP membership, we will record yourpayment method, fund account, order transaction information (financial sensitive information)to implement refunds via the original path, event red packet withdrawals, cancellation of consecutive monthly subscription services, and after-sales service. Based on your chosen payment method, we will share your order payment related information, order security related information, and other necessary information required by anti-money laundering laws with third parties through third-party payment software development kits (SDKs) embedded in the application. At the same time, based on maintaining payment security and tracing network transaction behavior, according to relevant laws and regulations, we will record, save, and display order information to you, including network transaction information for your purchase of membership, individual exam papers, or practice. If you refuse to provide the above information, you will not be able to become a VIP member or enjoy subscription services, but this does not affect your normal use of other functions of iMusicTheory.

The validity period of the Lifetime VIP refers to the end of the product's lifecycle, lasting until operations cease, and includes both active and passive reasons. Active reasons refer to: the company proactively announcing the cessation of operations for certain reasons; passive reasons refer to: company closure, bankruptcy, removal of the App from app stores, market policy adjustments, force majeure, and other reasons that render continued operations impossible. When operations cease, the Lifetime VIP service will automatically terminate. iMusicTheory VIP and SVIP membership services are online virtual products that adopt a pay-first-then-service model. The iMusicTheory membership fee is the price of the online product corresponding to the VIP or SVIP membership service you have purchased, and is not of the nature of a prepayment, deposit, earnest money, or savings card, etc. Once the membership service is activated, it is non-refundable; moreover, in accordance with the provisions of the Law of the People's Republic of China on the Protection of Consumer Rights and Interests, this product is not subject to the seven-day no-reason return policy.

6. Providing You with Security Assurance Functions

To fulfill the obligation of maintaining network security, improve the security of your use of services, ensure operational environment security, and prevent security risks such as phishing websites, fraud, network vulnerabilities, computer viruses, network attacks, and network intrusions, in order to prevent, discover, and investigate potential illegal or violative behaviors that violate user service agreements, policies, or rules, such as abnormal member account activity, multi-device logins, abnormal traffic, frequent refund requests, or low-price transfer of membership cards, we and the application security SDKs embedded in the application will automatically collect your device information in the background (including device model, operating system version, device settings, unique device identifiers (Android ID, IDFA, IDFV, UUID), necessary mobile application list information, software and hardware and devices, device environment information), log information (including your search and browsing history, follows, playback history, traffic, playback duration, IP address, WIFI network, telecom carrier network, language used, access dates and times), and may use or integrate your account information, transaction information, payment information, and other information authorized by you or shared according to law, to comprehensively judge your account and transaction risks, complete identity verification and detection, prevent security incidents, and take necessary recording, auditing, analysis, and disposal measures in accordance with the law to protect the legitimate rights and interests of all parties from infringement.

7. Account Cancellation

After you cancel your account, you will no longer be able to log in and use our products and services with that account; all benefits that have been generated but not fully consumed during the use of our products and services, as well as future expected benefits, will be cleared; the content, information, data, and records under that account will be deleted or anonymized, unless otherwise provided by laws and regulations or required by regulatory authorities; once your account cancellation is completed, it cannot be restored. If you still decide to cancel your account after careful consideration, you can submit a cancellation application through the relevant function settings page of our products or services you use, or according to operation guidelines, for example, you can do it yourself on the "Cancel Account" page ("My - Account Management - Cancel Account"). If the application fails, you can also contact our platform customer service, and we will reply to your request within fifteen working days. After you actively cancel your account, we will stop providing you with products or services.

III. Special Protection Rules for Sensitive Personal Information (in accordance with mandatory requirements of GB/T 35273-2020 Appendix B)

1. Separate Notification and Separate Consent:

Before collecting sensitive personal information such as facial biometric information, ID card numbers, phone numbers, precise location, recordings, permanent device hardware identifiers, and payment accounts, we will separately pop up to explain the collection purpose, storage period, and information use risks, and require you to manually check the confirmation box for authorization. We will not bundle basic services for blanket unified authorization, and you have the right to selectively refuse the collection of individual sensitive information.

2. Storage Encryption Protection:

AllSensitive Personal Informationis stored with AES encryption, with hierarchical access permission controls. Only internal compliance and risk control personnel have directed access, and all access behaviors are recorded in audit logs to strictly prevent information leakage, tampering, and loss.

3. Shortest Retention Period:

(1) Real-name authentication and facial verification information: retained during normal account use, completely deleted within 15 working days after account cancellation; (2) Real-time location and temporary recording data: processed instantly, not stored long-term; (3) Payment transaction vouchers: retained according to statutory time limits of financial supervision, automatically desensitized and destroyed upon expiration.

4. Authorization May Be Withdrawn at Any Time:

You may withdraw any sensitive information authorization at any time in the App "My - Settings - Privacy Management". After withdrawal, we will immediately stop collecting the corresponding information, which does not affect basic learning functions such as music theory practice and mock exams.

IV. Your Rights Related to Personal Information

According to the provisions of the "Personal Information Protection Law of the People's Republic of China", you have the following legal rights:

1. Right to Know:

You may review this privacy policy at any time to see the types and scope of personal information we collect about you;

2. Right to Access, Copy, and Export:

You may submit a personal data export application in the App "My - Settings - Account and Privacy Management". We will send you a copy of your personal information via your reserved email within 7 working days;

3. Right to Correct and Supplement:

If your personal information is filled in incorrectly, you may contact customer service to apply for correction and supplementation of relevant information;

4. Right to Delete and Withdraw Consent:

You may individually turn off various permissions, turn off personalized content recommendations, withdraw sensitive information collection authorization, and apply for deletion of corresponding personal information;

5. Right to Cancel Account:

The product has a built-in self-service account cancellation entry. Within 15 working days after cancellation review is completed, all your personal information and sensitive data will be cleared, and the data cannot be restored after cancellation;

6. Objection and Complaint Channel:

If you have questions or objections about personal information processing behavior, you may send an email to customer service at kefu@itheory.net, and we will respond and process it within 15 working days;

7. Right to Restrict Profiling:

You have the right to require us to stop generating personalized user profiles based on browsing and behavior records.

V. Purposes and Usage Rules for Information Collected by This App

(I) We may use the collected information for the following purposes:

When providing products and services in this app, it is used for identity verification, customer service, security protection, archiving and backup, etc., to ensure the security of the products and services provided to you by this app. Ensure the normal implementation of the product or service functions provided to you. For example: to implement personalized recommendation functions for you, understand how you access and use this app's products and services, so as to respond to your personalized needs in a targeted manner, such as language settings, personalized help services and instructions, or make other responses to you and other users, etc.

Improve this app's existing products and services and enhance user experience. For example: this app may collect your browsing information and your interests (you can choose in account settings) for data analysis, to display service information you are interested in to you; or to show you information content you might want to find when you search.

This app may also obtain other information from you for the reasonable need of providing services and improving service quality, including relevant information you provide when contacting customer service, survey responses you send to this app when participating in questionnaires, and relevant information this app obtains when you interact with this app.

For information collected from your various devices, this app may correlate them to provide you with consistent services across these devices. This app may combine information from one service with information from other services to provide you with services, personalized content, and recommendations. Help this app design new products and services. For example, when providing certain products or services, this app may invite users to participate in the "User Experience Improvement Plan". Users who join the User Experience Improvement Plan will have their usage of various functions of products and services counted as needed, so that the quality of products and services can be improved by analyzing statistical data, and innovative products and services helpful to users can be launched. If you do not want to participate in this plan, you can choose to turn off the relevant functions in relevant products/services.

This app may use your relevant information to provide you with more relevant advertising or promotional information. This app may also use your information to send marketing messages to you via this app's services, email, or other means, to provide or promote this app's or third parties' goods and services. If you do not want this app to use your personal information for the aforementioned purposes, you may request this app to stop using your personal information for the aforementioned purposes through relevant channels provided in this app's relevant products or services.

Software certification or management software upgrades. According to laws and regulations, your relevant information is collected and used in the following situations, in which case your authorization is not required:

• 1. Related to national security and defense security;
• 2. Related to public security, public health, and major public interests;
• 3. Related to crime investigation, prosecution, trial, and judgment execution;
• 4. For maintaining major legitimate rights and interests such as the life and property of personal information subjects or other individuals, but it is difficult to obtain their consent;
• 5. Necessary for maintaining the safe and stable operation of the provided products or services, such as discovering and handling product or service failures;
• 6. Necessary for lawful news reporting;
• 7. Necessary for academic research institutions to conduct statistics or academic research based on public interest, and when providing external academic research or describing results, the personal information contained in the results is de-identified;
• 8. Other situations stipulated by laws and regulations.

Other purposes with your consent. To give you a better experience, improve this app's products and services, or for other purposes you agree to, subject to relevant laws and regulations, this app may use information collected through one product or service, in the form of aggregated information or personalization, for this app's other products and services. For example, information collected when you use one service of this app may be used in another service to provide you with specific content, or to display relevant, non-universally pushed information to you. If this app provides corresponding options in relevant services, you may also authorize this app to use the information provided and stored by that service for this app's other services.

(II) Rules for Using Your Personal Information

This app will use the collected information according to this privacy policy and to implement this app's product or service functions. After collecting your personal information, this app will de-identify the data through technical means, and the de-identified information cannot identify the subject. Please understand and agree that under these circumstances, this app has the right to use the de-identified information; and without disclosing your personal information, has the right to analyze the user database and commercialize it.

Please note that all personal information you provide when using this app's products or services will continue to authorize this app to use during your use of this app's products and services, unless you delete it or refuse this app's collection through system settings. When you cancel your account, this app will stop using and delete your personal information. This app will count the usage of this app's products or services and may share these statistics with the public or third parties to demonstrate the overall usage trend of this app's products or services. However, these statistics do not contain any of your identity information.

This app will count the usage of this app's products or services and may share these statistics with the public or third parties to demonstrate the overall usage trend of this app's products or services. However, these statistics do not contain any of your identity information.

When this app displays your personal information, this app will use content replacement and anonymization to desensitize your information to protect your information security.

When this app wants to use your personal information for other purposes not stated in this policy, or use information collected for specific purposes for other purposes, it will seek your consent in advance through your active checkmark.

VI. Providing You with Other Additional Services via Permission Calls

To provide you with personalized products and services and enhance user experience, we apply for the following device permissions in the additional services provided to you, and only collect your personal information when you use the relevant functions.

1. Camera Permission

By accessing your camera, you can use the camera for QR code scanning, capturing videos and photos, or for user login, capturing and uploading videos and images.

2. Album and Storage Permission

After enabling album permission, you can upload your photos/images/videos and local cached audio/video files for avatar changing, posting and sharing comments, or communicating problems with customer service.

3. Microphone Permission

After enabling microphone permission, you can use the iMusicTheory exam and practice functions; even if you have agreed to enable microphone permission, the microphone remains off by default, and voice information will only be obtained through the microphone when you actively start the accompaniment function.

4. Notification Permission

If you use the subscription function, we may use notification permissions to push album update content and message reminders. We will ask you via popup whether to enable notification permissions.

5. Clipboard Read Permission

This product only temporarily reads clipboard content in scenarios where you actively click share or manually enter a redemption code; the temporary data is cleared immediately after reading, and the product will not silently or automatically read clipboard information during cold start or background suspended operation.

6. Auto-start and Associated Start

Auto-start and application associated start permissions are all turned off by default; if you need the message push function, you need to manually go to phone system settings to authorize and enable. Without your explicit consent, we will not privately apply for or enable wake-up related permissions. Closing path reference: Settings - Apps - App Launch Management - Select App "iMusicTheory" - Turn off associated start and auto-start related configurations. When you open iMusicTheory content push messages, with your explicit consent, it will jump to iMusicTheory APP to open relevant content. Without your consent, there will be no associated start. When you open files downloaded within iMusicTheory APP, it will associated start third-party APPs.

To ensure that this app can normally receive broadcast information pushed by the customer service when it is closed or running in the background, this app needs to use the (auto-start) capability to wake up this app's auto-start or associated start behavior through system broadcasts at a certain frequency, which is necessary for implementing functions and services.

When you open iMusicTheory content push messages, with your explicit consent, it will jump to iMusicTheory APP to open relevant content. Without your consent, there will be no associated start.

When you open files downloaded within iMusicTheory APP, it will associated start third-party APPs.

VII. Privacy Instructions Related to Third-Party SDKs

Third-party information sharing sensitive constraints: We will not transmitfacial information, ID cards, precise location, recordings and other sensitive information to Alipay or WeChat SDKs. We only transmit the minimum ordinary device information necessary for payment and sharing, sign confidentiality agreements with third parties, require them to follow the "Personal Information Protection Law" and GB/T 35273-2020 standards for data processing, and agree on data use boundaries and expiration destruction obligations. When you use services provided by third parties, we will share corresponding information after obtaining or ensuring the third party obtains your authorized consent, as well as in other situations complying with laws and regulations. You can understand how third parties process your personal information through the relevant information listed in this list. We will also strictly constrain third parties' behavior of obtaining personal information to protect your personal information security.

To ensure the stable operation of WeChat or implement related functions, we may also access software development kits (SDKs) provided by third parties to achieve the aforementioned purposes. The relevant third-party SDKs we access are also listed in the following list. You can view the third party's data use and protection rules through the links or paths provided in the directory. Please note that third-party SDKs may change their personal information processing types due to version upgrades, strategy adjustments, etc. Please refer to their officially published instructions.

VIII. Information Sharing, Transfer, and Disclosure

(I) Information Sharing

This app will not share your personal information with any company, organization, or individual outside this app, except in the following situations:

• 1. Prior explicit consent or authorization obtained from you;
• 2. Provided as necessary under applicable laws and regulations, legal procedure requirements, or mandatory administrative or judicial requirements;
• 3. Within the scope permitted by laws and regulations, when necessary to protect the interests, property, or safety of this app or its partners, you, other users of this app, or the public from harm;
• 4. Only by sharing your information can the core functions of this app's products or services be implemented or the services you need be provided;
• 5. Handling disputes or controversies between you and others at your request;
• 6. Provided in accordance with relevant agreements signed with you (including electronically signed online agreements and corresponding platform rules) or other legal documents;
• 7. Used for academic research;
• 8. Used for social public interest complying with laws and regulations.

This app may share your personal information with this app's affiliates. However, this app will only share necessary personal information and is bound by this privacy policy. If this app's affiliates want to change the purpose of processing personal information, they will seek your authorization again.

For companies, organizations, and individuals with whom this app shares personal information, this app will require them to abide by confidentiality agreements and require them to process personal information in accordance with this app's instructions, this privacy policy, and any other relevant confidentiality and security measures.

To comply with laws, enforce or apply this app's terms of use and other agreements, or to protect the rights and property or safety of this app, you, or other customers of this app, such as preventing fraud and other illegal activities and reducing credit risk, information may be exchanged with other companies and organizations. However, this does not include the sale, rental, sharing, or other disclosure of personal information for profit in violation of commitments made in this privacy policy.

(II) Information Transfer

This app will not transfer your personal information to any company, organization, or individual, except in the following situations:

• 1. Prior explicit consent or authorization obtained from you;
• 2. Provided as necessary under applicable laws and regulations, legal procedure requirements, or mandatory administrative or judicial requirements;
• 3. Provided in accordance with relevant agreements signed with you (including electronically signed online agreements and corresponding platform rules) or other legal documents.
• 4. In mergers, acquisitions, asset transfers, or similar transactions involving personal information transfer, this app will require the new company or organization holding your personal information to continue to be bound by this privacy policy; otherwise, this app will require that company or organization to seek your authorization again.

(III) Information Disclosure

This app will publicly disclose your personal information only in the following situations and on the premise of taking security protection measures that meet industry standards:

• 1. You agree or authorize this app to disclose;
• 2. You use the sharing function;
• 3. When this app must provide your personal information as required by laws, regulations, mandatory administrative enforcement or judicial requirements, this app may publicly disclose your personal information according to the required personal information types and disclosure methods. On the premise of complying with laws and regulations, when this app receives a request for the above information disclosure, this app will require corresponding legal documents to be issued. This app has carefully reviewed all requests to ensure they have a legal basis and are limited to data that law enforcement agencies have the legal right to obtain for specific investigation purposes.
• 4. In emergency situations, to protect the legitimate rights and interests of you, this app, and other users, or public safety and interests;
• 5. Compliant with the user agreement or other similar agreements of this app's relevant products and services.

IX. Protection of Minors' Information

According to the provisions of GB/T 35273 Appendix B,All personal information of minors under the age of fourteen is highly sensitive personal information.

• 1. Before collecting any information from minors under the age of 14, explicit written consent from the guardian must be obtained. Minors may not independently submitID cards, facial information, phone numbers, recordings, location and other sensitive information;
• 2. Minors aged 14-18 must be informed and confirmed by their guardians when using sensitive functions such as microphone, precise location, and real-name authentication;
• 3. Guardians may contact customer service at any time to query and delete minors'all sensitive personal information or cancel accounts. This app encourages guardians to guide minors in using this product and accompany them in reading this privacy policy. Guardians bear the primary responsibility for protecting minors' online privacy. This app will protect relevant information of minors in accordance with relevant national laws and regulations.

X. Liability Disclaimer

We cannot be exempted from corresponding legal liability for personal information leakage caused by our failure to implement information security protection or to conduct data processing in accordance with laws, regulations, and GB/T 35273 standards. We are not liable for corresponding responsibilities in the following situations:

• 1. Leakage caused by your own active disclosure of account passwords or active sharing of your own sensitive personal information.
• 2. Force majeure events such as earthquakes and floods, provided that we have taken reasonable remedial measures in a timely manner;
• 3. Risks arising from third parties privately collecting information after jumping to external third-party independent websites or platforms are unrelated to this product. In addition to the above situations, any leakage, loss, theft, or tampering of personal data caused by you telling others your user password, sharing registered accounts with others, or other improper personal safekeeping shall be borne by you.

XI. Scope of Application of This Policy

All products and services of this app are subject to this policy. Specific privacy policies for certain products and services will be specifically described in the user agreements or separate privacy policies of the relevant products and services. The privacy terms of such specific products and services constitute a part of this policy. If there are inconsistencies between the privacy terms of relevant specific products and services and this policy, the privacy terms of the specific products and services shall prevail.

This policy only applies to information collected by this app and does not apply to any third-party products and services or third-party information use rules, such as information collected through third-party products and services accepted via this app's products and services (including any third-party websites). This app assumes no responsibility for any third-party use of information provided by you.

If you have any questions about this privacy policy when using this app's products or services, you may contact us through the official feedback channels of relevant products or services published by this app or via email.

XII. Privacy Policy Update Instructions

• 1. General text revisions and wording optimization: We will push update notifications within the product;
• 2. Major change situations (including but not limited to: adjustments to the scope of personal information collection, changes to sensitive information processing rules, changes to the scope of third-party information sharing): The product will pop up a separate window displaying the change content, and you must re-check your consent before continuing to use the product; if you do not agree with the updated policy, you may stop using this product.

XIII. How to Contact Us

If you have any questions, opinions, or suggestions, you may contact us through the following methods:

Email: kefu@itheory.net

Compliance basis for this privacy policy: "Personal Information Protection Law of the People's Republic of China", GB/T 35273-2020 "Information Security Technology — Personal Information Security Specification" Appendix B Sensitive Personal Information List