# Musical Meter 2 vs Marine AR

The clearest difference is in-app purchases: Musical Meter 2 at none against Marine AR's 1. Musical Meter 2 also leads on update cadence (every 6 weeks vs every 23 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Marine AR sells 1 one-off in-app purchase. Musical Meter 2 asks for nothing beyond the download.

Musical Meter 2 ships an update every 6 weeks, Marine AR every 23 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Musical Meter 2 | Marine AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/musical-meter-2-notation/id1072803356/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 23 months |
| Monetization | Paid | — |
| Size | 71 MB | 725 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quizness Apps](https://appshunter.io/developer/1062928731) | [Falcon Reality](https://appshunter.io/developer/1772216895) |

## What reviewers say

### Musical Meter 2

[App page](https://appshunter.io/ios/app/musical-meter-2-notation/id1072803356)

Learn to read and play music rhythms with interactive exercises. This app teaches note duration and timing through visual and auditory examples, preparing you for real sheet music. It focuses on compound time, various note types, and developing a strong sense of rhythm.

**Highlights:** Learn note duration and timing, Visual and animated examples, Interactive, randomly generated levels, Professionally engraved notation, Compound time concepts, Eighth and sixteenth notes/rests, Dotted notes

**Features:** Vision Pro support

**In-app purchases:** none


### Marine AR

[App page](https://appshunter.io/ios/app/marine-ar/id6736514284)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marine AR Extension | Free | one-time |


## Frequently asked questions

### Is Musical Meter 2 free?

Musical Meter 2 is free to download, with no in-app purchases.

### Is Marine AR free?

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

### Do Musical Meter 2 or Marine AR have ads?

Neither Musical Meter 2 nor Marine AR shows ads.

### Which is updated more often, Musical Meter 2 or Marine AR?

Musical Meter 2 ships an update every 6 weeks, and Marine AR every 23 months. Most recently, Musical Meter 2 was updated on October 24, 2026 and Marine AR on October 24, 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.*