# RetroAchievementsUI vs MathyCrush

The clearest difference is in-app purchases: RetroAchievementsUI at none against MathyCrush's 1. RetroAchievementsUI also leads on iOS requirement (17.0 vs 26.0). MathyCrush's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. MathyCrush sells 1 one-off in-app purchase. RetroAchievementsUI asks for nothing beyond the download.

RetroAchievementsUI ships an update every 2 weeks, MathyCrush every 5 days. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RetroAchievementsUI | MathyCrush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/retroachievementsui/id6504225426/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 3 MB | 69 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Rosenberg](https://appshunter.io/developer/1632690709) | [Ahmed Omar](https://appshunter.io/developer/1778569966) |

## What reviewers say

### RetroAchievementsUI

[App page](https://appshunter.io/ios/app/retroachievementsui/id6504225426)

Browse and discover games with achievements. Track your progress and find new challenges to master. This open-source application is built with SwiftUI.

**Highlights:** Browse games with achievements, Discover new games, Track game progress, Open-source, SwiftUI built

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

**In-app purchases:** none


### MathyCrush

[App page](https://appshunter.io/ios/app/mathycrush/id6761435558)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $2.99 | one-time |


## Frequently asked questions

### Is RetroAchievementsUI free?

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

### Is MathyCrush free?

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

### Do RetroAchievementsUI or MathyCrush have ads?

Neither RetroAchievementsUI nor MathyCrush shows ads.

### Which is updated more often, RetroAchievementsUI or MathyCrush?

RetroAchievementsUI ships an update every 2 weeks, and MathyCrush every 5 days. Most recently, RetroAchievementsUI was updated on October 4, 2026 and MathyCrush on October 5, 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.*