Privacy policy
Who we are
Sudoku Clan is a Sudoku game you play in your browser and in our Android and iOS apps. Questions about privacy: support@sudokuclan.app.
What you give us
If you play online, you choose a display name and an avatar. Other players in your matches see them. You do not need an email, phone number or account.
What the game stores
For online play we keep a random player ID, your display name, avatar, rating and win/loss record per mode on our game server. Solo progress (puzzles, stars, trophies, settings) stays on your device.
Analytics
To improve the game we use Google Analytics for Firebase (how many people play, which modes, where players get stuck, crashes) and Microsoft Clarity (anonymous session replays and tap heatmaps, with typed text and room codes masked). You can turn both off in Settings → Privacy → Share anonymous usage stats.
Advertising
If we show ads in future, this page will be updated first and you will be asked for any consent the law requires.
What we never do
We do not sell your data. We never ask for your contacts, location, camera or microphone.
Deleting your data
Clear the app's storage to remove everything on your device. To delete your online profile, email support@sudokuclan.app with your display name and we will remove it.
Children
Sudoku Clan is suitable for all ages and does not knowingly collect personal information from children.
Changes
We will update this page if anything changes. Last updated 2026-11-09.