ChartMaster — Privacy Policy

1. Summary

ChartMaster does not collect any personal data. The app does not communicate with external servers; all learning data is stored locally on your device.

2. Data We Do Not Collect

• Name, email, phone, or any personally identifying information
• Location, photos, contacts
• Advertising identifiers (IDFA) or analytics
• Crash reports or telemetry

3. Data Stored On Your Device

The following information is stored only on your device and is not transmitted:

• Learning progress (completed lesson IDs, streak days)
• Bookmarked lessons
• In-app purchase receipts (managed by Apple StoreKit)

This data is removed when you delete the app.

4. Third-Party Services

The app uses only Apple StoreKit for in-app purchases. Apple's privacy policy applies to that data.

5. Children's Privacy

We do not knowingly collect personal information from children under 13. As stated above, we do not collect personal information from any user.

6. Changes To This Policy

Any changes will be reflected on this page. Material changes to data practices will be announced in the app update notes.

7. Contact

Questions about this policy: digimaru@gmail.com