# Music Theory 101 vs Clef Sight Reading Trainer

The clearest difference is in-app purchases: Music Theory 101 at none against Clef Sight Reading Trainer's 6. Music Theory 101 also leads on ratings volume (71 vs 1) and iOS requirement (15.0 vs 26.0). Clef Sight Reading Trainer's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Clef Sight Reading Trainer sells 6 in-app purchases, starting at $4.99 per 7 days. Music Theory 101 asks for nothing beyond the download.

Clef Sight Reading Trainer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Music Theory 101 has 71 ratings behind it against 1, so its average is the more settled of the two.

Music Theory 101 ships an update every 5 days, Clef Sight Reading Trainer every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Music Theory 101 | Clef Sight Reading Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (71 ratings)](https://appshunter.io/ios/app/music-theory-101-study-course/id1629995579/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clef-sight-reading-trainer/id6768969191/reviews)** |
| Number of ratings | **71** | 1 |
| Positive reviews | 82.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 78 MB | 77 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Poesie Inc](https://appshunter.io/developer/1505664474) | [Mel Owen](https://appshunter.io/developer/1674940249) |

## What reviewers say

### Music Theory 101

[App page](https://appshunter.io/ios/app/music-theory-101-study-course/id1629995579)

An interactive music theory training app covering classical fundamentals. It features 19 units with audio, exercises, and definitions, mirroring AP Music Theory exam curriculum. Practice skills with over 90 exercise types.

**Highlights:** Interactive music theory course, 19 comprehensive units, Audio samples and key definitions, Skill practice exercises, AP Music Theory exam curriculum, Over 90 exercise types, Aural recognition and dictation

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

**In-app purchases:** none


### Clef Sight Reading Trainer

[App page](https://appshunter.io/ios/app/clef-sight-reading-trainer/id6768969191)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clef Weekly | $4.99 | per 7 days |
| Clef Monthly | $9.99 | per month |
| Clef Weekly | $9.99 | per 7 days |
| Clef Annual | $59.99 | per year |
| Unlock Clef | $9.99 | one-time |
| Clef Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Music Theory 101 free?

Music Theory 101 is free to download, with no in-app purchases.

### Is Clef Sight Reading Trainer free?

Clef Sight Reading Trainer is free to download, with in-app purchases available.

### Which has better reviews, Music Theory 101 or Clef Sight Reading Trainer?

Clef Sight Reading Trainer is rated higher. Music Theory 101 averages 4.8 out of 5 from 71 ratings, while Clef Sight Reading Trainer averages 5.0 from 1 ratings.

### Do Music Theory 101 or Clef Sight Reading Trainer have ads?

Neither Music Theory 101 nor Clef Sight Reading Trainer shows ads.

### Which is updated more often, Music Theory 101 or Clef Sight Reading Trainer?

Music Theory 101 ships an update every 5 days, and Clef Sight Reading Trainer every 3 days. Most recently, Music Theory 101 was updated on October 30, 2026 and Clef Sight Reading Trainer on October 31, 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.*