Free for iPhone, iPad and Android

The calculator that remembers.

Every result is saved to history, ready to drop into your next calculation. No retyping, no copying between apps.

Download on theApp Store Get it onGoogle Play

No ads
No account
Works offline
55 languages

See how it works

The things that make YoCalculator faster than the calculator you have now.

Reuse results from history

Tap a calculation in history to add its result to the one you are typing. Each reused result gets its own colour, and keeps it in history, so you can always tell where a number came from.

Change any number

Spotted a typo three numbers back? Tap any number in the formula to select it, then type a new one, or tap a result in history to put it there instead.

Scientific functions when you need them

Tap f(x) for roots, powers, trigonometry and logarithms. Pick a function, then type the number it applies to. Inv switches to the inverse functions, and Deg switches angles to radians.

Choose how many decimals to keep

Tap or drag the cursor on the result to pick how many decimal places go into history. The calculation itself keeps full precision underneath.

Remove what you don't need

Swipe a calculation sideways to remove it. Removed one by mistake? Tap Undo to bring it back.

Everything else you'd expect, done properly

Small details that add up when you use a calculator every day.

History grouped by day

Your last 200 calculations, newest first, under clear date headers. The number you worked out this morning is still there this afternoon.

Correct by default

Full operator precedence and exact decimal arithmetic, so there are no floating-point surprises when money is involved.

Percentages that make sense

200 + 10% = 220. Percentages read from context, the way you'd work them out on paper. Prefer a % key over f(x)? Swap them in Settings.

Your language, your numbers

55 languages, and number formatting by country — or simply follow your device.

Phones, tablets, landscape

Keypad and history side by side in landscape, two-column history on wide screens, and a keyboard size you choose.

Light or dark

Light, dark, or follow the system. Results show zero to eight decimal places, and history colours can be turned off.

Your numbers stay on your phone

No account, no ads, no cross-app tracking. Calculations and history never leave your device — the app only reports anonymous crash and usage diagnostics. Read the privacy policy.