# Musa vs Intervalia

The clearest difference is in-app purchases: Musa at none against Intervalia's 3. Musa also leads on iOS requirement (13.0 vs 17.0). Intervalia's advantage is update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Intervalia sells 3 one-off in-app purchases. Musa asks for nothing beyond the download.

Musa ships an update every 2 months, Intervalia every 3 days. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Musa | Intervalia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 29 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandr Volkov](https://appshunter.io/developer/1895391644) | [Kostya Blokhin](https://appshunter.io/developer/829724783) |

## What reviewers say

### Musa

[App page](https://appshunter.io/ios/app/musa-note-reading-game/id6763593178)

**Features:** macOS Compatibility

**In-app purchases:** none


### Intervalia

[App page](https://appshunter.io/ios/app/intervalia-ear-training/id6816402990)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small thanks | $0.99 | one-time |
| Thanks | $2.99 | one-time |
| Big thanks | $4.99 | one-time |


## Frequently asked questions

### Is Musa free?

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

### Is Intervalia free?

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

### Do Musa or Intervalia have ads?

Neither Musa nor Intervalia shows ads.

### Which is updated more often, Musa or Intervalia?

Musa ships an update every 2 months, and Intervalia every 3 days. Most recently, Musa was updated on October 2, 2026 and Intervalia on October 4, 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.*