PushCalc Free is a free version of PushCalc, a RPN calculator.

This application is not an emulator but specially designed for iOS.
Therefor the following unique features are available.

1. POWERFUL STACK

You can push or pop numbers between the stack.
The stack has a hundred of depth and a hundred of width and you can push, pop or calculate to anywhere you want on the stack.

You can calculate to all numbers on the stack at once.

2. UNDO CALCULATION

You can undo the calculation.

3. CALCULATION HISTORY

This application saves the calculation history automatically.
You can reuse the previous calculation result to tap the item in the history.