# Scientific Calculator++ vs SwiftRPN

The clearest difference is price: SwiftRPN at Free against Scientific Calculator++'s $2.99. SwiftRPN also leads on in-app purchases (none vs 2) and update cadence (every 14 months vs every 38 months). Scientific Calculator++'s advantage is ratings volume (21 vs 1) and iOS requirement (13.0 vs 17.6). On rating, ads and device support there is nothing between them.

SwiftRPN is free to download; Scientific Calculator++ costs $2.99 up front. Scientific Calculator++ sells 2 one-off in-app purchases. SwiftRPN asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Scientific Calculator++ against 5.0 for SwiftRPN. That said, the two scores are not equally well evidenced: Scientific Calculator++ has 21 ratings behind it against 1, so its average is the more settled of the two.

Scientific Calculator++ ships an update every 38 months, SwiftRPN every 14 months. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Scientific Calculator++ | SwiftRPN |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (21 ratings)](https://appshunter.io/ios/app/scientific-calculator-plus-plus/id581543619/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/swiftrpn/id6470951024/reviews)** |
| Number of ratings | **21** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 14 months** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 3 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Patrick Gelvin](https://appshunter.io/developer/1573354051) |

## What reviewers say

### Scientific Calculator++

[App page](https://appshunter.io/ios/app/scientific-calculator-plus-plus/id581543619)

This powerful calculator app offers advanced functions for complex calculations, including fraction manipulation, angle conversions, and equation solving. It features a history of your calculations and a user-friendly interface designed for iPad.

**Highlights:** Calculation history, Fraction manipulation, Angle conversion (degrees, minutes, seconds), Permutation and combination calculations, LCM and GCD, Equation solver, Coordinate conversion

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| List Size Plus | $0.99 | one-time |
| Quadratic Plus | $0.99 | one-time |


### 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 Scientific Calculator++ free?

Scientific Calculator++ costs $2.99, and also offers in-app purchases.

### Is SwiftRPN free?

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

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

SwiftRPN is rated higher. Scientific Calculator++ averages 5.0 out of 5 from 21 ratings, while SwiftRPN averages 5.0 from 1 ratings.

### Do Scientific Calculator++ or SwiftRPN have ads?

Neither Scientific Calculator++ nor SwiftRPN shows ads.

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

Scientific Calculator++ ships an update every 38 months, and SwiftRPN every 14 months. Most recently, Scientific Calculator++ was updated on October 23, 2026 and SwiftRPN on October 27, 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.*