Calculators can kiss my math.
Seven one-minute rounds of mental arithmetic that adapt to you. Seven minutes a day, and you're the friend who splits the bill before it's arrived.
Download on theApp StoreComing soon to iPhone · 10 languages
Seven one-minute rounds of mental arithmetic that adapt to you. Seven minutes a day, and you're the friend who splits the bill before it's arrived.
Download on theApp StoreComing soon to iPhone · 10 languages
A new question type every minute. Get three right in a row and it gets harder; miss one and it eases off. Your level carries over, so every game starts where you left off.
Everything you need to get properly quick, and nothing you don't.
Five levels, from Easy to Genius. The questions climb as you do, and ease off the moment you slip.
Every wrong answer comes back until you've nailed it. No mistake left behind.
One-minute drills built around the facts you miss and the ones you're slow on.
Your quickest and toughest answers, what to focus on next, and how you compare with your own average.
Answer times, accuracy by level, a times-table heatmap and your year in a calendar.
One gentle reminder a day, around when you usually play. Take a break and they stop.
Every game ends with a title you've earned and an estimate of how you stack up. Share it. Watch your group chat reach for their calculators.
“Day 30 without a calculator. I see numbers in my dreams.”
The app quietly logs every question you see, so your stats get sharper the more you play. All of it stays on your phone.
Our mission
Seven minutes at a time. No accounts, no ads, no tracking: your data stays on your phone.
Your brain is faster than your phone. Prove it.
Download on theApp StoreComing soon to iPhone