# No Equal RPN Calculator — user reviews

> 4 indexed App Store user reviews of No Equal RPN Calculator by Stan Corbin, rated 4.90/5 from 7 ratings.

- Source: https://appshunter.io/ios/app/no-equal-rpn-calculator/id1440529798/reviews
- App overview in markdown: https://appshunter.io/ios/app/no-equal-rpn-calculator/id1440529798.md
- Rating breakdown: 5★ 6 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (4 lowest-rated)

### 3/5 — Educational

*2022-05-24*

With the stack permanently on display, its behaviour is easy to understand, making this one of the best calculators for anyone wishing to learn the powerful logic of RPN: more efficient and more logical than virtually all algebraic systems as well as providing immediate access to recent results. Even so, extra memories can be useful - and this has another 10 which work intuitively.

But…
This app does not make best use of the screen, particularly with an iPad in landscape view. The keypad is small and requires care to ensure each keypress is registered making operation rather clunky, especially when trying to access the extra orange and blue functions. If the keypad was larger, perhaps the most commonly used functions could have their own keys, thus reducing the number of keypresses to call them?

The advertising banner is distracting, despite being smaller than some in other apps. Such distraction may not be much of a problem with games and other trivia, but is very unwelcome in a calculator.

Overall, this is a good app with which to learn the considerable advantages of RPN - but for those already familiar, exploring the App Store for others could be very rewarding…

### 4/5 — Nice works ok

*2021-05-16, version 1.0.3*

Nice simple rpn calculator with just a few a knowing items 1) the adds are sometimes very miss leading I would stay away from using them. Two) after pressing enter the x reg retains its previous value rather then setting to 0 - small item but when your working the stack it’s a big confusion factor

### 5/5 — Nice app

*2022-11-25*

Thanks for the app! Hope a dark theme will be coming one day

### 5/5 — Ugly but gets the job done

*2019-11-04, version 1.0.3*

The operators and functions are there, and it doesn’t make mistakes. But it is ugly. Time spent with any HP calculator would provide design cues that would be welcome. I like it. But I don’t show it off to my friends.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*