About this app
Sort the errors by subject or knowledge point, review them in your spare time. Cover the answer area by painting it, preventing your being influenced by previous thoughts. Focus on your unskilled, improve your exam grade.
Latest release
What’s New
Fixed known issues, improved user experience, and supported more localized languages.
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 15, 2026 · 1:23 PM $8.99
Screenshots
