Fast and familiar
Works the way your thumb already expects. Big keys, clear readout, haptics that feel right.
Coming soon to the App Store · iOS 17+
Calcul67or
A calculator with a twist.
Everything you expect from a calculator, plus one number that never behaves. Familiar math, a playful mode, and a few surprises along the way.
Coming soon on the App StoreFree · No account required
One playful secret
Real math when you need it. Switch to 67 mode when you don’t. Find genuine ways to make 67 and discover the surprises they unlock.
Your math stays yours
Calculations and history stay on your device. No calculator account required. Read our privacy policy for details about ads and optional online features.
Small app. Sharp details.
A familiar keypad, your calculation history, custom button colors, and surprises hidden in the numbers.
Do the math.
Coming soon on iPhone and iPad.