# Metamath vs Learn Rust

The clearest difference is price: Metamath at Free against Learn Rust's $2.99. Metamath also leads on iOS requirement (12.4 vs 17.0). Learn Rust's advantage is update cadence (every 14 months vs every 34 months). On ads, in-app purchases and device support there is nothing between them.

Metamath is free to download; Learn Rust costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Metamath ships an update every 34 months, Learn Rust every 14 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Metamath | Learn Rust |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 14 months** |
| Size | 210 MB | 187 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [William Hale](https://appshunter.io/developer/297636668) | [Shahbaz Khan](https://appshunter.io/developer/1479963383) |

## What reviewers say

### Metamath

[App page](https://appshunter.io/ios/app/metamath/id1348593713)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Rust

[App page](https://appshunter.io/ios/app/learn-rust-programming-course/id6752511439)

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

**In-app purchases:** none


## Frequently asked questions

### Is Metamath free?

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

### Is Learn Rust free?

Learn Rust costs $2.99, with no in-app purchases.

### Do Metamath or Learn Rust have ads?

Neither Metamath nor Learn Rust shows ads.

### Which is updated more often, Metamath or Learn Rust?

Metamath ships an update every 34 months, and Learn Rust every 14 months. Most recently, Metamath was updated on November 11, 2026 and Learn Rust on November 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*