# Stack RPN Calculator

> RPN scientific calculator with visible functions and a multi-value stack. (iPhone/iPad app by Dario Bersiga.)

- Source: https://appshunter.io/ios/app/stack-rpn-calculator/id1493986697 (this page in markdown: same URL + `.md`)
- Developer: [Dario Bersiga](https://appshunter.io/developer/668388549)
- Category: Productivity, Utilities
- Price: Free
- Rating: 3.50/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 10 MB
- Languages: English
- Released: 2020-01-11
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/stack-rpn-calculator/id1493986697/reviews.md

## What is Stack RPN Calculator?

RPN scientific calculator benefiting from the major scientific functions visible on the screen.

The calculator shows a stack of up to 4 values but can store a large number of numbers (depends on the phone's memory).

## Key features

- Visible scientific functions
- RPN (Reverse Polish Notation) input
- Stack display for up to 4 values
- Large number storage capacity
- Designed for iPhone and iPad

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/stack-rpn-calculator/id1493986697/reviews.md

### 3/5 — I like it but

*2023-04-10*

I really like having a few stacks visible.  UI is great.  But the def rad grad toggle omits deg

### 4/5 — Good app, but here are some improvements I would like to add

*2023-01-28*

The app is great. I finally have a convenient way to calculate numbers using the famously quick logic system: RPN. I was introduced to RPN on my HP–Prime calculator and thought that it was unfortunate that there is not a way to do it on my phone. This app was the solution!

A thing I would want to be added is a way to scroll up the stack to view the higher stacks.

### 1/5 — Awful

*2020-01-30*

A hideous interface with a large advertising banner - which appears to have reduced height of buttons but not their characters.

I couldn't contemplate trying even one calculation.
Unusable for me.
Deleted.

## Frequently asked questions about Stack RPN Calculator

### What is Stack RPN Calculator?

Stack RPN Calculator is a free scientific calculator for iPhone and iPad that uses Reverse Polish Notation (RPN) for input. It features visible scientific functions and a stack that can hold up to 4 values.

### How many numbers can Stack RPN Calculator store?

While the visible stack displays up to 4 values, the calculator can store a large number of additional numbers, limited primarily by your device's available memory.

### Is Stack RPN Calculator free to use?

Yes, Stack RPN Calculator is available for free. It does not have any in-app purchases or advertisements.

### What devices is Stack RPN Calculator compatible with?

Stack RPN Calculator is designed for Apple devices, including iPhone, iPad, and iPod. It is rated for ages 4 and up.

### When was Stack RPN Calculator last updated?

The latest version of Stack RPN Calculator, version 1.0, was released and last updated on January 11, 2020. It was initially released on the same date.

### What is the user rating for Stack RPN Calculator?

Stack RPN Calculator has a rating of 3.5 stars based on 2 user reviews. This indicates a generally positive but mixed reception from its small user base.

### Does Stack RPN Calculator have ads?

No, Stack RPN Calculator does not contain advertisements. It is a completely ad-free experience for users.

## Version history (last 1 release)

### 1.0 — 2020-01-11

No release notes.

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## More apps by Dario Bersiga

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- [Learn reading in French](https://appshunter.io/ios/app/learn-reading-in-french/id674184945)
- [Montessori Read & Play in German - Learning Reading German with Montessori Methodology Exercises](https://appshunter.io/ios/app/montessori-read-and-play-in-german-learning-reading-german-with-montessori-methodology-exercises/id687072011)
- [Montessori Read & Play Italian](https://appshunter.io/ios/app/montessori-read-and-play-italian/id700636557)
- [Montessori Read & Play in Spanish - Learning Reading Spanish with Montessori Methodology Exercises](https://appshunter.io/ios/app/montessori-read-and-play-in-spanish-learning-reading-spanish-with-montessori-methodology-exercises/id722804226)
- [Read and Play in Swedish](https://appshunter.io/ios/app/read-and-play-in-swedish/id744382891)

All apps by Dario Bersiga: https://appshunter.io/developer/668388549

## Related topics

[stack rpn calculator](https://appshunter.io/ios/topics/stack-rpn-calculator) · [dario bersiga](https://appshunter.io/ios/topics/dario-bersiga) · [rpn calculator free](https://appshunter.io/ios/topics/rpn-calculator-free)

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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.*