About this app
More than 40000 questions are waiting for you to challenge. Only one solution, more support for color, black and white printing, export pictures. There is no wrong number, level time limit, you can have fun!
Latest release
What’s New
Fix the display error of the completed quantity tag on the home page, and the prompt window cannot pop up after the challenge is completed.
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 4, 2026 · 7:40 PM $0.99
Screenshots
