Effective date: August 1, 2026.

TimeSprout (hereinafter referred to as "this Application") is developed and operated by Fu Jidong (hereinafter referred to as "we" or "us"). The application package name is com.celestmoe.timesprout. This Application is an all-in-one planning tool designed for students, providing features such as class schedule, to-do list, assignments, and countdown. We attach great importance to the protection of your personal information. This Policy explains how this Application collects, uses, stores, shares, and protects your information.

Please read and fully understand the entire contents of this Policy before using this Application. Once you start using this Application, it is deemed that you have agreed to the information processing methods described in this Policy. This Policy will be updated from time to time as the application functions evolve, and we will notify you within the Application after any update. For the complete terms of service, please refer to the "TimeSprout User Agreement".

I. Personal Information Processor Information

II. Information We Collect

This Application follows the principle of "local-first". All your business data, including to-do items, courses, assignments, countdowns, categories, and tags, are stored locally on your device using the HarmonyOS framework's Security Level S2 encrypted storage, and are not uploaded to our servers. The following information may be collected or processed when specific functions are triggered:

（一）Huawei Account Information. When you choose to log in with a Huawei account, we will obtain your Huawei account identifier (OpenID) through the Huawei Account Kit for identity recognition and association with subscription status and backup data. The specific scope of information collected is subject to the authorization prompt of the Huawei Account Kit. We will not obtain your account password. Huawei account information is personal information, but not sensitive personal information.

（二）Device and Log Information. When the application crashes or encounters an exception, the LogUploadService will collect device model, system version, application version, crash stack, and operation logs for fault diagnosis and repair. The logs do not actively record plaintext business data such as your to-do names, course content, or personal descriptions; however, in very rare cases, the abnormal context may contain fragments of data involved in your current operation.

（三）Subscription and Transaction Information. When you purchase subscription services through Huawei IAP, the transaction is processed by the Huawei payment system. We only receive subscription status (whether valid and expiration time) to provide corresponding services and do not have access to your payment credentials or bank card information.

III. Sensitive Personal Information

We only process the following sensitive personal information:

（一）Huawei Account Identifier. Used for login and subscription association. The processing premise is that you voluntarily choose to log in with a Huawei account and agree to the authorization of the Huawei Account Kit.

Apart from this, the first version of this Application does not launch a weather function and does not collect location information; it does not collect sensitive permission information such as contacts, photo albums, microphone, or camera.

IV. Purposes of Information Use

The information we collect is strictly limited to the following purposes:

（一）Provide Core Functions. Local storage and display of to-do items, courses, assignments, countdowns, and other data are the core services of this Application. These data only exist on your device and we cannot access them.

（二）Provide Account and Subscription Services. Huawei account information is used for identity recognition and subscription association to ensure that the services you purchase are available after login.

（三）Improve Application Stability. Log information is used to diagnose crashes and exceptions, helping us locate and fix issues and improve the application experience.

We will not use your information for other purposes not stated in this Policy. If we need to change the purpose of use, we will obtain your consent again.

V. Information Storage and Protection

（一）Local Storage and Encryption. All your business data is stored in a relational database (TimeSprout_v2.db) on your device locally, using the HarmonyOS framework's SecurityLevel.S2 security level. Encryption of sensitive data uses AES-256 and HMAC-SHA256 algorithms. The keys are generated and managed by the device's secure environment and are not exported in plaintext with backup files.

（二）Data Storage Location. Business data is only stored locally on your device. The log upload function uploads diagnostic logs to our servers (typically the one closest to you) for fault diagnosis.

（三）No Active Upload. This Application does not implement any logic to automatically upload business data to servers. Your data leaves the device through only two paths: first, you actively use the "Local Backup" function to export backup files; second, the log upload function sends diagnostic logs when the application encounters an exception.

（四）Security of Backup Files. Files generated by local backup are stored in a location designated by you. We recommend that you keep them properly. The data in backup files is encrypted, but the security of the files themselves depends on the security of your storage location.

（五）Log Retention. Diagnostic logs are retained for no more than 90 days after upload and are automatically deleted upon expiration. Local log files on the device are managed by LogFileManager with a size limit; old logs are automatically cleaned up when the limit is exceeded.

（六）Data Retention Period. Business data is retained until you actively delete it, uninstall the application, or clear application data. The Huawei account identifier is retained until you cancel the Huawei account association or stop using this Application. Subscription status is retained for 90 days after the subscription expires.

VI. Information Sharing and Disclosure

We will not sell your personal information to any third party. We may share necessary information with third parties in the following circumstances:

（一）Interaction with Huawei Services. Functions such as Huawei account login and IAP subscription rely on services provided by Huawei. These interactions are processed by Huawei under its privacy policy, and we only receive necessary result information. The specific information processing methods are subject to the privacy policies of the relevant Huawei services.

（二）Legal Requirements. We may disclose necessary information when required by laws and regulations, upon lawful request by administrative authorities, or to protect the legitimate rights and interests of this Application, users, and the public.

Except for the above circumstances, we will not share your personal information with any third party.

VII. Your Rights

You have the following rights regarding your personal information:

（一）Access and Correction. Since all business data is stored locally on your device, you can view and edit any to-do item, course, assignment, countdown, and other information in the application at any time.

（二）Deletion. You can delete individual data entries in the application at any time, or delete all business data by uninstalling the application or clearing application data. Uninstalling the application will clear all business data on the device and cannot be recovered.

（三）Data Export. You can export all data as a backup file through the "Settings - Data Management - Local Backup" function and store it in a location designated by you.

（四）Withdraw Authorization. You can withdraw the permissions of this Application at any time in the HarmonyOS system "Settings - Application Management". After withdrawal, the corresponding functions will be unavailable, but other functions can still be used normally.

（五）Account Cancellation. If you have logged in with a Huawei account, you can cancel the association on the Huawei account management page. Since the data of this Application is stored locally, canceling the Huawei account will not affect the business data already on your device, but you will no longer be able to use login-related functions.

VIII. Protection of Children and Minors

This Application is aimed at student groups and may be used by minors.

（一）Children Under 14. If you are a child under 14 years of age, you should use this Application under the accompaniment of a guardian, and the guardian shall consent to this Policy on your behalf. We will not knowingly actively collect personal information from children.

（二）Rights of Guardians. If you are the guardian of a minor and find that we have inadvertently collected inappropriate information, please contact us through the contact information at the end of this Policy, and we will handle it promptly.

（三）Huawei Account Protection for Minors. For minor users who log in with a Huawei account, account information processing follows the Huawei account protection rules for minors.

IX. Third-Party Services Description

This Application uses the following third-party services, and their information processing is subject to their respective privacy policies:

（一）Huawei Account Kit. Provides account login services and processes your Huawei account identifier. For details, please refer to the privacy policy related to Huawei Account Services.

（二）Huawei IAP. Provides in-app purchase services and processes subscription transactions. For details, please refer to the privacy policy related to Huawei In-App Purchases.

Except for the above services, this Application does not integrate other third-party data collection services.

X. Cookies and Similar Technologies

This Application is a native HarmonyOS application and does not use browser cookies or similar tracking technologies. We only use the local storage capabilities provided by the HarmonyOS framework (such as relational databases and Preferences) to save your business data and application settings, and these data are all stored locally on your device.

XI. Policy Updates

This Policy may be updated due to application function adjustments or changes in laws and regulations. After the update, we will notify you in a prominent manner within the application. For significant changes (such as new types of information collection or purposes of use), we will obtain your express consent again. We recommend that you review this Policy regularly to stay informed of the latest information processing practices.

XII. Contact Us

If you have any questions, suggestions, or complaints about this Policy or personal information protection, you can contact us through the following methods:

Team Name: Fu Jidong
Contact Email: chinokoyuki@celestmoe.com (Application Lead)
Feedback Channel: In-app "Settings - About TimeSprout - Contact Us" entry
Policy Version: v1.0
Effective Date: August 1, 2026

We will respond as soon as possible after receiving your feedback, usually within 3 business days.