# Matheion vs Riff

The clearest difference is update cadence: Riff at every 4 days against Matheion's monthly. Matheion's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Matheion ships an update monthly, Riff every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Matheion | Riff |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 33 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [zhao lu](https://appshunter.io/developer/1084198171) | [Andy Otto](https://appshunter.io/developer/1870819227) |

## What reviewers say

### Matheion

[App page](https://appshunter.io/ios/app/matheion-learn-to-program/id6780350971)

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

**In-app purchases:** none


### Riff

[App page](https://appshunter.io/ios/app/riff-podcast-anything/id6792856313)

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

**In-app purchases:** none


## Frequently asked questions

### Is Matheion free?

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

### Is Riff free?

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

### Do Matheion or Riff have ads?

Neither Matheion nor Riff shows ads.

### Which is updated more often, Matheion or Riff?

Matheion ships an update monthly, and Riff every 4 days. Most recently, Matheion was updated on November 5, 2026 and Riff on November 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.*