United StatesRPN Calculator 48 is a polished RPN replacement for Apple's calculator app: - Same scientific functionality as Apple's calculator app* - Use swipe gestures to undo and redo operations! - Starts quickly - Large buttons - Easy-to-read display - 100 entry stack - 6 memory buttons (A-F) - 50+ levels of undo/redo - Saves state on exit The ergonomics (screen and keyboard layout) of RPN Calculator 48 were inspired by HP's outstanding 48-series calculator. RPN Calculator 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book). * This app is not an HP 48 emulator.
Perfect RPN Calculator
Please keep updating it. This is a perfect calculator!
United StatesExactly the RPN Calculator I Want on My Phone
This app is far superior to the default iOS calculator app - mostly because it’s RPN. It does everything I need a smartphone calculator to do, and I don’t have to change the way I think about using a calculator. It works reliably and smoothly. It’s been the calculator app of choice on each of my last four iPhones!
United StatesMy Go To Calculator!
This full feature scientific calculator is my go to calculator for everything. I love the RPN style of entry, science the classic HP 45 and 65 calculators I loved so much. It also has hexadecimal and octal modes that I used while working, not so much now that I am retired. Easy to use. Love the display.
United StatesHP41 CV/CX has died
Have a number of the 41 series and they have all finally died. This has been a good replacement although i haven’t explored it’s programmability.
United StatesFantastic
Finally! A calc app that replaces my old m48 app that was removed from the store. This has nice big responsive buttons and large 10 level stack with exactly the right amount of functions used most often.
United StatesPlease add haptic keyboard feedback support
This app has everything. Could you please add haptic keyboard feedback? I turned off the sound as I want the calculator to be silent. Haptic feedback would be great to know when I have pressed a key.
United StatesLIKE
I just love this — best calculator ever.
United States
- The "LOGx" button was incorrectly labeled "LOGy". Fixed.
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