# RPN Big Integer Calculator vs Big Number Calculator+

The clearest difference is review sentiment: RPN Big Integer Calculator at 100% against Big Number Calculator+'s 0%. RPN Big Integer Calculator also leads on rating (5.0 vs 4.0) and iOS requirement (9.3 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

RPN Big Integer Calculator holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 100% of RPN Big Integer Calculator's written reviews are positive against 0% of Big Number Calculator+'s.

## The numbers

| Metric | RPN Big Integer Calculator | Big Number Calculator+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rpn-big-integer-calculator/id1300713250/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/big-number-calculator-plus/id1541255205/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Monetization | Free | Free |
| Size | 19 MB | 19 MB |
| Requires iOS | **9.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stephan Jancar](https://appshunter.io/developer/1107422127) | [Kunio Takeuchi](https://appshunter.io/developer/851499887) |

## What reviewers say

### RPN Big Integer Calculator

[App page](https://appshunter.io/ios/app/rpn-big-integer-calculator/id1300713250)

This application provides a Reverse Polish Notation (RPN) calculator designed for handling very large numbers, up to 1024 bits. It specializes in prime number calculations and the factorization of substantial integers.

**Highlights:** RPN calculator interface, Big Integer support (up to 1024 bits), Prime Number Calculations, Factorization of large numbers

**Features:** macOS Compatibility

**In-app purchases:** none


### Big Number Calculator+

[App page](https://appshunter.io/ios/app/big-number-calculator-plus/id1541255205)

Perform calculations with extremely large numbers, up to 66,000 digits. Supports addition, subtraction, multiplication, and division, with options for different calculation engines and data input methods. Results can be saved and printed in formatted text files.

**Highlights:** Handles up to 66,000 digits, Addition, subtraction, multiplication, division, Selectable calculation engines (Swift, Objective-C), Load data from files (txt, rtf, rtfd), Automatic data formatting for printing and saving, Customizable number separators

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RPN Big Integer Calculator free?

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

### Is Big Number Calculator+ free?

Big Number Calculator+ is free to download, with no in-app purchases.

### Which has better reviews, RPN Big Integer Calculator or Big Number Calculator+?

RPN Big Integer Calculator is rated higher. RPN Big Integer Calculator averages 5.0 out of 5 from 2 ratings, while Big Number Calculator+ averages 4.0 from 2 ratings.

### Do RPN Big Integer Calculator or Big Number Calculator+ have ads?

Neither RPN Big Integer Calculator nor Big Number Calculator+ shows ads.

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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.*