# Duoly vs Moon Rotor

The clearest difference is in-app purchases: Moon Rotor at none against Duoly's 3. Duoly's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Duoly sells 3 in-app purchases, starting at $6.99 per month. Moon Rotor asks for nothing beyond the download.

Duoly ships an update weekly, Moon Rotor every 9 days. Both last shipped on October 14, 2026.

## The numbers

| Metric | Duoly | Moon Rotor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Size | 86 MB | 13 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [thibaut pauget](https://appshunter.io/developer/1614090508) | [Alexander Joubert](https://appshunter.io/developer/6788415618) |

## What reviewers say

### Duoly

[App page](https://appshunter.io/ios/app/duoly/id6756029479)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duoly Premium | $6.99 | per month |
| Duoly Premium (Yearly) | $39.99 | per year |
| Duoly Lifetime | $89.99 | one-time |


### Moon Rotor

[App page](https://appshunter.io/ios/app/moon-rotor/id6788587721)

**In-app purchases:** none


## Frequently asked questions

### Is Duoly free?

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

### Is Moon Rotor free?

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

### Do Duoly or Moon Rotor have ads?

Neither Duoly nor Moon Rotor shows ads.

### Which is updated more often, Duoly or Moon Rotor?

Duoly ships an update weekly, and Moon Rotor every 9 days. Most recently, Duoly was updated on October 14, 2026 and Moon Rotor on October 14, 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.*