# Metamath vs Mad Func

The clearest difference is in-app purchases: Metamath at none against Mad Func's 1. Metamath also leads on iOS requirement (12.4 vs 18.0). Mad Func's advantage is update cadence (every 3 days vs every 34 months). On price, ads and device support there is nothing between them.

Both are free to download. Mad Func sells 1 in-app purchase, starting at $2.99 per 7 days. Metamath asks for nothing beyond the download.

Metamath ships an update every 34 months, Mad Func every 3 days. The most recent releases landed on September 17, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Metamath | Mad Func |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mad-func/id6747051739/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 210 MB | 28 MB |
| Requires iOS | **12.4** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [William Hale](https://appshunter.io/developer/297636668) | [Gina De La Rosa](https://appshunter.io/developer/1315362641) |

## What reviewers say

### Metamath

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Mad Func

[App page](https://appshunter.io/ios/app/mad-func/id6747051739)

Learn algorithms and coding concepts through interactive, gamified challenges. Solve puzzles by arranging code blocks, debug issues, and tackle system design problems. Track your progress and prepare for interviews or strengthen your computer science fundamentals.

**Highlights:** Gamified algorithm puzzles, Interactive debugging, System design challenges, Multi-language support, Progress tracking dashboard, Weekly new challenges

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mad Func Pro | $2.99 | per 7 days |


## Frequently asked questions

### Is Metamath free?

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

### Is Mad Func free?

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

### Do Metamath or Mad Func have ads?

Neither Metamath nor Mad Func shows ads.

### Which is updated more often, Metamath or Mad Func?

Metamath ships an update every 34 months, and Mad Func every 3 days. Most recently, Metamath was updated on September 17, 2026 and Mad Func on June 3, 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.*