# Arietta vs OpusKeep

The clearest difference is in-app purchases: Arietta at none against OpusKeep's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OpusKeep sells 3 in-app purchases, starting at $2.99 per month. Arietta asks for nothing beyond the download.

## The numbers

| Metric | Arietta | OpusKeep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 31 MB | 48 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jakob Torsvik](https://appshunter.io/developer/1883711298) | [Timothe Watteau](https://appshunter.io/developer/1896667874) |

## What reviewers say

### Arietta

[App page](https://appshunter.io/ios/app/arietta-music-practice/id6760299792)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpusKeep

[App page](https://appshunter.io/ios/app/opuskeep/id6770141185)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $2.99 | per month |
| Annual Pro | $19.99 | per year |
| Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Arietta free?

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

### Is OpusKeep free?

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

### Do Arietta or OpusKeep have ads?

Neither Arietta nor OpusKeep shows ads.

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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.*