# MooDuell vs Amsl

The clearest difference is in-app purchases: Amsl at none against MooDuell's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MooDuell sells 1 in-app purchase, starting at $24.99 per month. Amsl asks for nothing beyond the download.

MooDuell ships an update monthly, Amsl every 2 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | MooDuell | Amsl |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 27 MB | 33 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wunderbyte GmbH](https://appshunter.io/developer/1482406130) | [Karlsruhe Institute of Technology](https://appshunter.io/developer/526682306) |

## What reviewers say

### MooDuell

[App page](https://appshunter.io/ios/app/mooduell/id1598911543)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Platform Subscription | $24.99 | per month |


### Amsl

[App page](https://appshunter.io/ios/app/amsl/id6443829618)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MooDuell free?

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

### Is Amsl free?

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

### Do MooDuell or Amsl have ads?

Neither MooDuell nor Amsl shows ads.

### Which is updated more often, MooDuell or Amsl?

MooDuell ships an update monthly, and Amsl every 2 months. Most recently, MooDuell was updated on October 30, 2026 and Amsl on October 30, 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.*