# radiobus.fm vs MatuMath

The clearest difference is in-app purchases: radiobus.fm at none against MatuMath's 3. MatuMath's advantage is update cadence (fortnightly vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MatuMath sells 3 in-app purchases, starting at $19.99 per month. radiobus.fm asks for nothing beyond the download.

radiobus.fm ships an update every 13 months, MatuMath fortnightly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | radiobus.fm | MatuMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/radiobusfm/id569432484/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 41 MB | 56 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ergopix Sàrl](https://appshunter.io/developer/398455015) | [Stephane Hartmann](https://appshunter.io/developer/6779685444) |

## What reviewers say

### radiobus.fm

[App page](https://appshunter.io/ios/app/radiobusfm/id569432484)

This app facilitates a school radio concept, established in 2002 by a pedagogical high school. It partners with the general directorate of compulsory education to bring radio broadcasting into educational environments.

**Highlights:** School radio concept, Educational broadcasting, Established in 2002, Partnership with educational authorities

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

**In-app purchases:** none


### MatuMath

[App page](https://appshunter.io/ios/app/matumath/id6779685442)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium mensuel | $19.99 | per month |
| Premium Trimestriel | $59.99 | per 3 months |
| Premium Annuel | $179.99 | per year |


## Frequently asked questions

### Is radiobus.fm free?

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

### Is MatuMath free?

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

### Do radiobus.fm or MatuMath have ads?

Neither radiobus.fm nor MatuMath shows ads.

### Which is updated more often, radiobus.fm or MatuMath?

radiobus.fm ships an update every 13 months, and MatuMath fortnightly. Most recently, radiobus.fm was updated on October 14, 2026 and MatuMath on October 24, 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.*