# Scientific Computer vs RPN

The clearest difference is in-app purchases: RPN at none against Scientific Computer's 1. Scientific Computer's advantage is update cadence (every 2 weeks vs every 6 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Scientific Computer sells 1 in-app purchase, starting at $5.99 per 7 days. RPN asks for nothing beyond the download.

Scientific Computer ships an update every 2 weeks, RPN every 6 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Scientific Computer | RPN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scientific-computer/id6737824642/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | Freemium | — |
| Size | 118 MB | 1 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Sheshou Technology Co.,Ltd.](https://appshunter.io/developer/1645260509) | [Joachim Seland Graff](https://appshunter.io/developer/1845679029) |

## What reviewers say

### Scientific Computer

[App page](https://appshunter.io/ios/app/scientific-computer/id6737824642)

This app offers a comprehensive suite of calculation tools, including basic, scientific, mortgage, and tax calculators. It also provides unit conversions, date calculations, and a compass with location data. Manage your finances, plan projects, and navigate with ease using its multifunctional features.

**Highlights:** Basic and scientific calculations, Mortgage and personal income tax calculator, Date and unit conversion, Compass with GPS data, Score calculator, Base conversion

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One week membership | $5.99 | per 7 days |


### RPN

[App page](https://appshunter.io/ios/app/rpn/id6754224532)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Scientific Computer free?

Scientific Computer is free to download, with in-app purchases available.

### Is RPN free?

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

### Do Scientific Computer or RPN have ads?

Neither Scientific Computer nor RPN shows ads.

### Which is updated more often, Scientific Computer or RPN?

Scientific Computer ships an update every 2 weeks, and RPN every 6 months. Most recently, Scientific Computer was updated on October 7, 2026 and RPN on October 12, 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.*