About this app
Math Error Lab is a quiet notebook for learning from mistakes. Save an attempt, diagnose why it failed, then write a corrected explanation with reflection notes and a prevention plan. Over time, you build a personal library of error artifacts to revisit and learn from. Everything stays on your device.
Latest release
What’s New
Restructure app
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 · 1:19 PM Free
Screenshots
