Sumline: Notepad Calculator

Sumline is a calculator you write in like a notepad. Type each line in your own words and the answer appears on the right as you type.

- Words are labels: "Coffee 4.50" just works
- Totals: type "total" to add up the lines above
- Percentages: "20% of 150", "Dinner 64 + 18%"
- Variables: "Rent = 1200", then use rent anywhere below
- "prev" reuses the last answer
- Units: length, weight, volume, cooking, time, data and temperature. "5 km in mi", "3 ft 4 in in cm", "100 °C in °F"
- Functions: sqrt, sin, cos, tan, log, ln, round, plus pi
- Tap any answer to copy it
- Keep as many sheets as you like for budgets, trips, recipes and projects

No account, no ads, no internet access. Your sheets stay on your phone.