Privacy Policy

One Hand Sudoku · Effective 2 September 2026

There are no accounts and no server of ours. Your game records stay on your device and are never sent to us. Google AdMob does process device information to serve ads — section 3 explains that.

1. What we collect

Nothing. The app collects no personal information — no name, email, phone number or location. There is no account to create, and the app makes no network requests to any server of ours.

2. What is stored on your device

As you play, the app saves the following in your device's local storage. It never leaves the device, and deleting the app deletes it.

You can clear your records at any time from Settings → Clear history in the app, and removing the app removes all of the above.

3. Advertising (Google AdMob)

The app shows ads through Google AdMob: a banner below the game board, and rewarded ads that you choose to watch when you want more hints or note checks.

To serve ads, Google may process your advertising identifier, device and settings information, approximate location derived from your IP address, and ad impression and click activity. That processing is governed by Google's policies; we do not receive this information.

You can limit personalised advertising in your device settings — on Android under Settings → Google → Ads, and on iOS under Settings → Privacy & Security → Tracking.

4. Children

This app is not directed at any particular age group, and we do not knowingly collect personal information from children.

5. Sharing with third parties

Because we collect no personal information, we share none. Advertising-related processing is carried out by Google as described in section 3.

6. Changes to this policy

If this policy changes we will update this page and the effective date above. Significant changes will also be announced in the app.

7. Contact

For any question about this policy or how your data is handled, reach us at:
joonjkit@gmail.com