Calcoo Calculator with History

Edit any past number — totals update live. Carry one row's result into the next. Annotate rows with comments and color highlights. $6.99 unlock, no subscription.

Calcoo is a calculator that keeps every step on screen — and lets you edit any of them.

Type a row, hit return, type the next. Change a number from earlier and everything below recalculates.

Tap the result of any row to carry it into the next. Plan a trip across five rows: flights (845 + 845), hotel (180 + 180 + 180), meals (48 + 62 + 75 + 31), transit (35 + 22 + 18), and your share. Carry the hotel total into the last row and divide by four. The split stays linked — if the rate drops, your share updates.

Each calculation lives on its own sheet. Name it, pin the ones you keep coming back to, and share a snapshot with anyone. No sign-up, no account.

Calcoo Pro adds comments and row highlights so you can annotate any line of math, plus editable share links, accent colors, and unlimited sheets.

Free • 5 sheets • View-only share links • Full calculator: carry-over, editable history, expressions with parentheses

Calcoo Pro — one-time $6.99 • Unlimited sheets • Editable share links so collaborators can keep working on a sheet • Comments and row highlights for annotating the math • Accent colors and advanced number formatting

No subscription. No tracking. Calcoo runs entirely on your device.