# Kadmia vs RustAcademy

The clearest difference is price: Kadmia at Free against RustAcademy's $6.99. RustAcademy's advantage is update cadence (every 6 weeks vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Kadmia is free to download; RustAcademy costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Kadmia ships an update every 6 months, RustAcademy every 6 weeks. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Kadmia | RustAcademy |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kadmia/id6468431732/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | **Free** | Paid |
| Size | 31 MB | 54 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kadmia LLC](https://appshunter.io/developer/1693141442) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## What reviewers say

### Kadmia

[App page](https://appshunter.io/ios/app/kadmia/id6468431732)

Learn JavaScript through interactive challenges and games, focusing on fundamental programming principles rather than passive tutorials. Build your coding intuition step-by-step with engaging puzzles and immediate feedback.

**Highlights:** Interactive coding challenges, Gamified learning approach, Focus on programming fundamentals, Active learning methods, Daily progress tracking, Debugging practice game

**Features:** macOS Compatibility

**In-app purchases:** none


### RustAcademy

[App page](https://appshunter.io/ios/app/rustacademy/id6740005880)

Learn Rust programming through focused, bite-sized lessons and daily challenges. Master core concepts, algorithms, and syntax with guided practice and code reading. Ideal for developers seeking a deeper understanding of Rust.

**Highlights:** Bite-sized Rust lessons, Guided practice and code reading, Daily recall challenges, Structured algorithm track, Code completion exercises, Favorite module saving

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kadmia free?

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

### Is RustAcademy free?

RustAcademy costs $6.99, with no in-app purchases.

### Do Kadmia or RustAcademy have ads?

Neither Kadmia nor RustAcademy shows ads.

### Which is updated more often, Kadmia or RustAcademy?

Kadmia ships an update every 6 months, and RustAcademy every 6 weeks. Most recently, Kadmia was updated on October 27, 2026 and RustAcademy on October 30, 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.*