About this app
A game that accompanies you throughout the year to help you practice mental arithmetic!
Latest release
What’s New
Version 2.0.0
Mar 26, 2020
A brand new version with a brand new look!
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
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
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 24, 2026 · 1:16 AM Free