About this app
The helpful critters in this app want you to understand common grammar mistakes. Your mission, if you choose to accept it, is to select the correct sentence. Incorrect answers will lower your overall score. Follow onscreen buttons to move through the app, and as always, may the grammar odds be ever in your favor!
Latest release
What’s New
We added the third set of sentences! Now the GrammOrNot app can help you with concise writing!
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 24, 2026 · 1:40 AM Free
Screenshots
