Privacy Policy

Effective June 13, 2026
The short version. Tessera runs entirely on your device. There is no account, no server, and no tracking. Nothing you do in the app is transmitted to us or to anyone else.

1. Who we are

Tessera ("Tessera", "we", "us") is a daily-practice app for learning financial accounting. This policy explains what data the app handles and how. If you have any questions, contact us at support@tesserastudy.app.

2. Our approach: local-only

Tessera is built to work fully offline. All of your information is stored locally on your device in the app's own database. We do not operate a backend server that receives your data, we do not require you to create an account, and we do not use any third-party analytics or advertising services.

3. What the app stores on your device

All of the above stays on your device. None of it is sent to us.

4. What we do not collect

5. Tracking

We do not track you. Tessera does not follow you across other apps or websites, and contains no third-party advertising or analytics software.

6. Subscriptions and Apple

Tessera offers an optional auto-renewing subscription, sold and processed by Apple through the App Store. Any data related to your purchase, billing, or subscription status is handled by Apple under Apple's Privacy Policy. Tessera receives only the on-device receipt needed to unlock paid content; it never sees your payment information.

7. Data retention and deletion

Because your data lives only on your device, you are in control of it. You can erase your progress at any time using "Reset progress" in the app's settings, and deleting the app removes all of its local data from your device.

8. Children's privacy

Tessera is an educational tool intended for a general audience and is not directed at children under 13. Because the app collects no personal information and transmits nothing off the device, it does not knowingly gather data from anyone, including children.

9. Changes to this policy

If we change how the app handles data, we will update this page and revise the effective date above. Material changes will also be reflected in the app's release notes.

10. Contact

Questions about privacy? Email support@tesserastudy.app.