Privacy Policy Mahjong Dojo · Effective October 22, 2026

Mahjong Dojo does not collect, store, or share any personal information. There is no account to create, no advertising, no analytics, and no tracking.

What stays on your device

Your lesson progress, puzzle ratings and streaks, flashcard history and settings are saved on your device so the app can remember where you left off.

iCloud

If you're signed in to iCloud, the app syncs that same progress between your own devices using Apple's iCloud key-value storage. The data goes to your iCloud account, not to us, and we can't see it. Apple's handling of iCloud data is covered by Apple's privacy policy.

No third parties

The app contains no third-party SDKs, ads, or analytics, and it never sends data to us or anyone else. The games against bots run entirely on your device.

Children

Because the app collects no data from anyone, it collects no data from children.

Changes

If this policy changes, the new version will be posted on this page with a new effective date.

Contact

Questions about this policy? Open an issue on GitHub.