About this app
This app supports to learn pi (ratio of a circle's circumference). You can choose PRACTICE MODE and CHALLENGE MODE. Learn longer, longer, longer digits.
Latest release
What’s New
This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included. minor 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 Sep 2, 2026 · 7:59 AM Free
Screenshots
