Key Calculator vs RedoCalc

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.

This is a calculator for people who only use it for simple calculations, such as adding up receipts or calculating the cost of a meal split between several people, but who are always worried about whether the input was correct. As it is a simple calculator, the only operations it can perform are - Four arithmetic operations (addition, subtraction, multiplication, division) - Percentage calculations (including calculations such as consumption tax using percentages) . The results are displayed as numbers with a digit symbol. There is no complicated exponential display. The calculation proceeds in the order of the keys you enter. There is no priority for multiplication or division. The formulas you enter are displayed in order in the upper area as a history. If you tap the white part, it will turn yellow and you will be able to modify that part. (You can modify not only numbers, but also arithmetic symbols such as + and ×.) If you tap “=”, the expressions from the first line to the last line will be recalculated. The result will be automatically copied, so you can switch to other apps and paste the value there.