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Your little thinking break. Ten ways to discover numbers anew.
ZaRaster is a calm collection of number puzzles for short thinking breaks and playful practice. Discover ten varied games about numbers, patterns and logical thinking.
Ten games. A new challenge every time.
- Sudoku
- Number walls
- Number paths
- Sum grids
- Magic squares
- Number balances
- Greater than, less than, equal to
- Insert operators
- Binary grids
- Number pictures

Play at your own pace
Each game offers three difficulty levels. Step-by-step tutorials and hints help you get started. Depending on the game, enter numbers by tapping or dragging and dropping. Sound and music settings can be adjusted.

Your profile. Your progress.
Local profiles, statistics, achievements and saved games record your progress. ZaRaster does not require its own online account. On smartphones and tablets, the app supports portrait and landscape layouts; orientation follows your device settings.

Play for free — optionally without advertising
The free version contains Google AdMob advertising. You can remove advertising with an optional one-time purchase through Google Play. Google processes data for advertising and purchases; details are provided in the privacy policy.
Privacy explained clearly
Profiles, saved games and settings are stored locally. Android backup may be available depending on device settings. Your local profile names and profile pictures are not passed to the advertising service as profile data. Personalised advertising is disabled.
Help & contact
Questions or feedback about ZaRaster? Email [email protected].