Privacy Policy

Last Updated: July 9, 2026

Welcome to 不经意间 (ByChance) ("the App"), developed and operated by Mengyang Xu ("we", "us", or "our").

We respect your privacy and are committed to protecting it. This Privacy Policy explains how the App handles your information.

1. Information We Collect

The App is designed to work primarily on your device.

We do not collect, transmit, or store any personal information on our servers, including but not limited to:

Your name, email address, phone number, or contact information;

Device identifiers or advertising identifiers;

Location information;

Usage analytics or behavioral tracking data;

Your vocabulary lists, learning progress, or other personal content.

All vocabulary data, learning records, and settings are stored locally on your device unless you choose to use system features such as iCloud synchronization.

2. Permissions Used

The App may request access to certain system features only when you choose to use related functions.

These permissions may include:

Camera – to recognize words from photos.

Photo Library – to import images for OCR.

Microphone & Speech Recognition – for voice-based word input.

Notifications – to display vocabulary reminders.

Clipboard – only when you explicitly choose to import content from the clipboard.

These permissions are used solely to provide the corresponding features and are never used to collect or transmit your personal data.

3. How Your Information Is Used

Your data is processed entirely on your device.

We do not:

Upload your vocabulary;

Analyze your learning behavior;

Sell or share your information;

Build advertising profiles;

Track your activity across apps or websites.

If you enable iCloud synchronization, your data is synchronized directly through Apple's iCloud service and is subject to Apple's Privacy Policy.

4. Third-Party Services

The App may contain links to third-party websites or services. These services have their own privacy policies, and we are not responsible for their privacy practices.

Please review their policies before providing any information.

5. Data Security

Because the App does not operate its own servers and does not collect user data, your information remains under your control on your own device (or in your personal iCloud account if synchronization is enabled).

We take reasonable measures to ensure the App itself is secure and reliable.

6. Your Rights

Since we do not collect or store your personal information, there is generally no personal data for us to access, modify, export, or delete.

You remain in full control of your data stored on your device and may delete it at any time by deleting the App or clearing its local data.

7. Contact Us

If you have any questions about this Privacy Policy, please contact us:

Email: dakui.workshop@gmail.com

We will respond within 15 business days.

8. Changes to This Policy

We may update this Privacy Policy from time to time.

Any changes will be published within the App or on the relevant distribution platform. Your continued use of the App after changes become effective constitutes acceptance of the updated Privacy Policy.

Thank you for using 不经意间 (ByChance).

We are committed to providing a private, distraction-free, and secure vocabulary learning experience.