About this app
With a very "delicious" graphic environment and a "game" type interface, it is the ideal application to motivate children to master the two most basic and important operations in mathematics: Addition and Subtraction The application keeps your best performances to motivate you to do more and better Level 1 - Numbers between 1 to 9 (20 exercises in 2 steps) Level 2 - Numbers between 1 to 50 (30 exercises in 3 steps) Level 3 - Numbers between 30 to 99 (30 exercises in 3 steps) Level 4 - Numbers between 100 to 999 (30 exercises in 3 steps)
Latest release
What’s New
Minor bug fixes
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 27, 2026 · 2:58 AM $4.99