RPN Calculator 48 Reviews

Long Time RPN User

Littlebear73

I’ve paid a lot of money over the last 30 years for various HP RPN calculators. Some turned out to ge collectors items. This is as good or better than those.

The best calculator!

Mormon man

Love having an RPN call that i used so often in college! It’s the only calculator I use.

Rocks. Period

mwk7

This is the best calc app I have used. Simplified or full on functionality and stable. Love it. Highly recommended.

Love it!

Gfbob

I’ve owned & used most ALL HP calculators in my many years as a land surveyor & business owner and have used this app for several years now & find it works GREAT!

This is the RPN calc app you want

stucky1925

The only calculator I used throughout seven years of higher education was my HP48Gx. I cannot use an infix calculator now, and I miss the stack on simple RPN calcs. I’ve used just about every HP48Gx emulator for iPhone that’s come out. They all spend too much time trying to emulate a handheld calculator. This app leaves the past in the past and brings a usable RPN calculator with a stack to your phone. This is the app you want.

Great calculator but might need to fix display

lrayher

Love how it calculates but can’t make it work right in landscape mode on my iPad. Mostly use my iPad in landscape but calculator only seems to display properly in portrait mode. Is there any way to adjust it so it displays properly in landscape mode. If there is not any way to do this, a great update would be to make it automatically rotate so it displays properly in in portrait and landscape Thank you for the app.

Great calculator, especially for RPN users

Sonj

This calculator is my favorite and for good reason. It works perfectly, reliably, and logically. Reverse Polish Notation, RPN, is a method for solving math problems involving more than two operations. In other words, it is the best utility for solving the problems you face when you need a calculator. Learn to love it.

RPN Calculator 48 Reviews – Page 4