# Music Theory 101 vs Solfy

The clearest difference is monetization model: Music Theory 101 at free against Solfy's free with in-app purchases. Music Theory 101 also leads on review sentiment (83% vs 65%) and update cadence (every 5 days vs fortnightly). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Music Theory 101 ships an update every 5 days, Solfy fortnightly. Both last shipped on October 30, 2026.

## The numbers

| Metric | Music Theory 101 | Solfy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (71 ratings)](https://appshunter.io/ios/app/music-theory-101-study-course/id1629995579/reviews)** | — |
| Number of ratings | **71** | — |
| Positive reviews | **82.9% of reviews** | 65.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 78 MB | 88 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Poesie Inc](https://appshunter.io/developer/1505664474) | [Anicet BART](https://appshunter.io/developer/1715297800) |

## 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


### Solfy

[App page](https://appshunter.io/ios/app/solfy/id6471417194)

This app makes learning music theory engaging through adaptive, fun, and varied exercises. Developed with professional musicians' expertise, it helps users progress while enjoying the process.

**Highlights:** Adaptive exercises, Fun and engaging learning, Varied exercise types, Professional musician expertise, Progress tracking

**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 Solfy free?

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

### Do Music Theory 101 or Solfy have ads?

Neither Music Theory 101 nor Solfy shows ads.

### Which is updated more often, Music Theory 101 or Solfy?

Music Theory 101 ships an update every 5 days, and Solfy fortnightly. Most recently, Music Theory 101 was updated on October 30, 2026 and Solfy on October 30, 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.*