# Calculator vs SwiftRPN

The clearest difference is price: SwiftRPN at Free against Calculator's $1.99. SwiftRPN also leads on rating (5.0 vs 4.0). Calculator's advantage is iOS requirement (15.6 vs 17.6). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

SwiftRPN is free to download; Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SwiftRPN holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Calculator ships an update every 11 months, SwiftRPN every 14 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calculator | SwiftRPN |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/calculator/id286319444/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/swiftrpn/id6470951024/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 14 months |
| Monetization | Paid | **Free** |
| Size | 5 MB | 3 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Byte Works, Inc.](https://appshunter.io/developer/286319447) | [Patrick Gelvin](https://appshunter.io/developer/1573354051) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator/id286319444)

This app offers a comprehensive scientific calculator with multiple modes, including algebraic, scientific, conversions, and logic calculations. It features a user-friendly design with large buttons and remembers your progress if interrupted.

**Highlights:** Algebraic entry, Scientific calculations, Unit conversions (length, area, volume, etc.), Logic calculator (binary, octal, decimal, hex), 10 memory registers, Wide number range support

**Features:** macOS Compatibility

**In-app purchases:** none


### SwiftRPN

[App page](https://appshunter.io/ios/app/swiftrpn/id6470951024)

This utility app provides a powerful Reverse Polish Notation (RPN) calculator with advanced features. It supports scalar types, vectors, and matrices, along with extensive built-in operators and unit conversions. Easily switch between number bases and visualize results.

**Highlights:** RPN stack for efficient calculations, Support for scalar, vector, and matrix types, 84 built-in operators with documentation, 74 built-in units for conversion, Multiple number base input and output (binary, octal, decimal, hex), BigInt support for integer calculations

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

Calculator costs $1.99, with no in-app purchases.

### Is SwiftRPN free?

SwiftRPN is free to download, with no in-app purchases.

### Which has better reviews, Calculator or SwiftRPN?

SwiftRPN is rated higher. Calculator averages 4.0 out of 5 from 1 ratings, while SwiftRPN averages 5.0 from 1 ratings.

### Do Calculator or SwiftRPN have ads?

Neither Calculator nor SwiftRPN shows ads.

### Which is updated more often, Calculator or SwiftRPN?

Calculator ships an update every 11 months, and SwiftRPN every 14 months. Most recently, Calculator was updated on October 31, 2026 and SwiftRPN on November 3, 2026.

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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.*