RPN Calculator

Simple and clean layout

Simple, clean. Works great

I very much like that it makes no attempt to be an HP. It is RPN. It is an app. Those are good enough. Trying to be a handheld calculator is fitting a square peg into a round hole.

Great app. For better ease of use, I'd label division as ”y / x", since it isn't at first clear which one is the divisor.

Nice simple, attractive rpn calculator, just what I wanted. Other rpn calculators try to mimic HP and are overloaded for what I need on my phone.

I really like having a basic RPN calculator with a clean design that doesn't try to mimic LCD's. I occasionally get floating point errors though

Won't clear

I like the calculator. It's not trying to be an old HP. My only wish is to have haptic feedback or sounds when using.

This is the best. I've tried a few others, they all crash, especially the HP emulators. This one works great though, looks good.

Perfect everyday calculator replacement for rpn users. Simple, clear, and straightforward. Exactly what you need from a phone calculator. Fancy stuff for coursework, exams etc gets done on the real calculator, but for basic everyday calculations, this is ideal. I'd give 6 stars if I could.

The only thing I miss is an undo button.

Great app. For better ease of use, I'd label division as ”y / x", since it isn't at first clear which one is the divisor.

As long as you don't need all the fancy trig or scientific functions, this is by far the best everyday RPN calculator. Thank you, Andrew!

Great basic RPN calculator. The key layout is perfect and it uses a stack. My only complaint is there is no portrait mode. Still these beats most of the calculators out there.