# Stack RPN Calculator vs Half That Calculator

The clearest difference is rating: Half That Calculator at 5.0 against Stack RPN Calculator's 3.5. Stack RPN Calculator's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Half That Calculator holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Stack RPN Calculator | Half That Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/stack-rpn-calculator/id1493986697/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/half-that-calculator/id6462308344/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 months |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 39 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dario Bersiga](https://appshunter.io/developer/668388549) | [Innovative Tomato, LLC](https://appshunter.io/developer/1265226906) |

## What reviewers say

### Stack RPN Calculator

[App page](https://appshunter.io/ios/app/stack-rpn-calculator/id1493986697)

This scientific calculator displays major functions on screen and utilizes a stack for calculations. It supports a stack of up to 4 values but can store many more numbers depending on device memory.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Half That Calculator

[App page](https://appshunter.io/ios/app/half-that-calculator/id6462308344)

This app quickly calculates half of any number you enter, supporting both decimals and fractions. It's a handy tool for various projects like crafting, woodworking, and construction.

**Highlights:** Calculate half of any number, Supports decimal input, Supports fraction input (up to 32nds), Useful for crafts and construction, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack RPN Calculator free?

Stack RPN Calculator is free to download, with no in-app purchases.

### Is Half That Calculator free?

Half That Calculator is free to download, with no in-app purchases.

### Which has better reviews, Stack RPN Calculator or Half That Calculator?

Half That Calculator is rated higher. Stack RPN Calculator averages 3.5 out of 5 from 2 ratings, while Half That Calculator averages 5.0 from 1 ratings.

### Do Stack RPN Calculator or Half That Calculator have ads?

Half That Calculator shows ads; Stack RPN Calculator does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*