# Music Theory 101 vs Clef Trainer Grid

The clearest difference is price: Music Theory 101 at Free against Clef Trainer Grid's $2.99. Music Theory 101 also leads on ratings volume (73 vs 13). Clef Trainer Grid's advantage is update cadence (daily vs every 5 days) and chart position (#191 vs unranked). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Music Theory 101 is free to download; Clef Trainer Grid costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for Music Theory 101 against 4.8 for Clef Trainer Grid. That said, the two scores are not equally well evidenced: Music Theory 101 has 73 ratings behind it against 13, so its average is the more settled of the two. Written reviews split almost evenly too, at 83% and 83% positive.

Music Theory 101 ships an update every 5 days, Clef Trainer Grid daily. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Music Theory 101 | Clef Trainer Grid |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.8 (73 ratings)](https://appshunter.io/ios/app/music-theory-101-study-course/id1629995579/reviews) | **[4.8 (13 ratings)](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721/reviews)** |
| Number of ratings | **73** | 13 |
| Positive reviews | 82.9% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Daily** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#191** |
| Size | 78 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Poesie Inc](https://appshunter.io/developer/1505664474) | [John Andersen](https://appshunter.io/developer/1829819109) |

## 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 Trainer Grid

[App page](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721)

**Currently charting:** #191 Top Paid · Education (US App Store)

Master sheet music reading across multiple clefs. Practice note input via touch, MIDI keyboard, or microphone. Features a unique grid input to ensure genuine learning, not just muscle memory.

**Highlights:** Treble, alto, and bass clef support, Major and minor key signature support, Accidental support, Adjustable ledger lines, Grid input for muscle memory prevention, MIDI keyboard and microphone input, Cheat Mode for real-time note names

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

**In-app purchases:** none


## Frequently asked questions

### Is Music Theory 101 free?

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

### Is Clef Trainer Grid free?

Clef Trainer Grid costs $2.99, with no in-app purchases.

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

Clef Trainer Grid is rated higher. Music Theory 101 averages 4.8 out of 5 from 73 ratings, while Clef Trainer Grid averages 4.8 from 13 ratings.

### Do Music Theory 101 or Clef Trainer Grid have ads?

Neither Music Theory 101 nor Clef Trainer Grid shows ads.

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

Music Theory 101 ships an update every 5 days, and Clef Trainer Grid daily. Most recently, Music Theory 101 was updated on November 7, 2026 and Clef Trainer Grid on November 5, 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.*