Calculate
Quick numerical reasoning under the clock.
A fast, friendly brain-training app built around one simple loop: pick a game, beat the clock, push your score.
Free · No ads in your way · iOS & Android



Each category packs three genuinely different puzzles — not reskins of the same mechanic. What's inside is for you to discover.
Quick numerical reasoning under the clock.
Stretch your short-term and working memory.
Logic and deduction, one fair puzzle at a time.
Spatial reasoning and seeing what others miss.
Every detail is tuned so the challenge stays fun — quick, fair, and satisfying.
Every game is a 60-second sprint kicked off by an animated 3-2-1 countdown. Fits any spare moment.
Puzzles ramp up as you answer correctly and ease back after a miss — never too easy, never stuck.
Responsive haptics, sound and bouncy animations make every interaction feel physical and satisfying.
Drill any game clock-free to learn at your own pace before you race the timer.
Climb the rankings and see how your best runs stack up against everyone else.
Dynamic Type, clear contrast and tablet support. See our commitment →
Out now on iOS and Android. Free to play, with no ads getting in your way.