RPN 30 4+
An awesome RPN calculator!
Ashok Khanna
Designed for iPad
-
- Free
Screenshots
Description
Reverse Polish Notation ("RPN") is an alternative way to complete calculations. Many find it to be more intuitive and user-friendly than the "normal" way of using a calculator. RPN works entering numbers first and then the operator (i.e. 53 47 + will give you 53 + 47 = 100).
This is my artistic interpretation of the ideal form for a calculator, taking inspiration from the standard Apple iPhone calculator. Make sure to spend a few minutes to get the hang of the calculator and also read the short help guide (accessed by a long press on the help button) to get the most out of it.
No ads, no paid features, always free to use.
Please enjoy and leave a review if you like the calculator.
What’s New
Version 2.40
Added functions for converting from polar coordinates (in degrees) to rectangular and vice versa.
Ratings and Reviews
Simple, uncluttered, responsive
Really nice simple RPN calculator app with a clean and uncluttered interface with decent sized buttons that nevertheless still has all the common functions I need on a handheld calculator. Responds instantly with no perceptible lag even on a fairly old phone. A few things in the UI are a little unintuitive at first (e.g. the location of the backspace, undo, and swap x<->y functions, and it took me an embarrassing length of time to figure out that you close the help page by swiping down), but it works well once you learn how to use it.
Developer Response ,
Many thanks for the kind words. I agree that some of the UI is a bit hard to follow at first glance, sorry about that. Hopefully you will enjoy it for the years to come and that upfront time investment pays off :-)
Thanks again
Thanks, Ashok. Still not working for me, though!
Sideways and not fully rendered on iPad Air running iOS 12.4.5.
(No landscape view and keypad is not fully visible).
I have received a kind email from the developer, who notified me of the update. Unfortunately, when I tried to download it, I was informed it was not compatible, so I took the option to download the latest compatible version as prompted, hoping it might have been fixed at the same time.
Sadly, the problem has not gone away.
Although it is impossible to use, I have changed my review from 1 star to 3, on the basis of the kindness and effort this guy has put into producing what I'm sure will work well for anyone with the very latest iPad.
Dear Ashok; if you want to give me a brand new iPad, I'll happily test your latest version! ;-). Best Wishes. WS.
Developer Response ,
Dear Whapper Stan,
Hope you are well. It took me a bit of time but I have created version 2.0 that now works very well for iPad.
I would much appreciate if you could try the new version and hopefully you will like it.
My best wishes,
Ashok
App Privacy
The developer, Ashok Khanna, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- Ashok Khanna
- Size
- 951.3 KB
- Category
- Utilities
- Compatibility
-
- iPhone
- Requires iOS 13.0 or later.
- iPad
- Requires iPadOS 13.0 or later.
- iPod touch
- Requires iOS 13.0 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- © 2020 Ashok Khanna
- Price
- Free