About this app
Train your mental arithmetic ability with MindCalc! This is NOT your standard "what is 7 * 13?" type of game but here the result is already known and an arithmetic operator is given. Now you need to pick two numbers out of 9 to make this equation happen. The faster you solve your equation, the more points you gain. But if you make a mistake you need to start all over - so be careful! For an extra kick choose the highest difficulty where your score will be reset to zero in case you run out of time. You can also compete against another person to see who has stronger mental arithmetic skills!
Latest release
What’s New
• Technology refresh
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 19, 2026 · 9:24 PM Free