# Musical Meter 2 vs MistakeBook

The clearest difference is price: Musical Meter 2 at Free against MistakeBook's $1.99. MistakeBook's advantage is review sentiment (100% vs 78%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Musical Meter 2 is free to download; MistakeBook costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Musical Meter 2 ships an update every 6 weeks, MistakeBook monthly. The most recent releases landed on September 25, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Musical Meter 2 | MistakeBook |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Paid | Paid |
| Size | 71 MB | 26 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quizness Apps](https://appshunter.io/developer/1062928731) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## 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


### MistakeBook

[App page](https://appshunter.io/ios/app/mistakebook-wrong-answer-log/id6770173206)

Log and review incorrect answers to improve learning. Organize mistakes by subject and topic, and utilize spaced repetition to reinforce weak areas. Track progress with visual charts and daily check-ins for effective test preparation.

**Highlights:** Log mistakes with photos and notes, Organize by subject and custom tags, Spaced repetition review mode, Ebbinghaus forgetting curve schedule, Progress charts and stats dashboard, Data import/export backup

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

**In-app purchases:** none


## Frequently asked questions

### Is Musical Meter 2 free?

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

### Is MistakeBook free?

MistakeBook costs $1.99, with no in-app purchases.

### Do Musical Meter 2 or MistakeBook have ads?

Neither Musical Meter 2 nor MistakeBook shows ads.

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

Musical Meter 2 ships an update every 6 weeks, and MistakeBook monthly. Most recently, Musical Meter 2 was updated on September 25, 2026 and MistakeBook on October 1, 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.*