About this app
This is the app to study the addition and subtraction. I developed this app for my 7-year-old daughter.
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. - Bug fixes. - Addition1 x Wormy available for free.
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 · 9:25 AM Free
Screenshots
