Revolutionary Tap-to-Calculate
Select an operator (+−×÷) first, then tap numbers to instantly calculate results. Saves 3 steps vs traditional calculators!

Customize Your Number Pad
Adjust max/min values, set step increments, and save frequent numbers. Build your dream keypad for faster inputs.

Undo Mistakes Instantly
Typed a wrong number? Undo your last action with one tap—no restart needed.

Calculation Time Machine
Auto-saves every step. Tap any history entry to resume calculations right where you left off.