# Primo vs Solfe

The clearest difference is in-app purchases: Solfe at none against Primo's 10. Solfe also leads on update cadence (every 3 days vs monthly). Primo's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. Primo sells 9 in-app purchases, starting at $3.49 per month. Solfe asks for nothing beyond the download.

Primo ships an update monthly, Solfe every 3 days. The most recent releases landed on September 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Primo | Solfe |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 258 MB | 76 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [INTERNATIONAL LABORATORY OF MUSIC EDUCATION](https://appshunter.io/developer/1493879437) | [REGNITION, K.K.](https://appshunter.io/developer/1619949682) |

## What reviewers say

### Primo

[App page](https://appshunter.io/ios/app/primo/id1493879438)

This app offers dailyソルフェージュ exercises to build fundamental music skills like reading sheet music, identifying pitches by ear, and understanding rhythm. It aims to make music education accessible and affordable for everyone, regardless of location or prior experience.

**Highlights:** Sheet music reading practice, Ear training exercises, Rhythm and timing drills, Sight-reading simulations, Music history and appreciation content, Specialized theory problem collections

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 読譜（どくふ） | $3.49 | per month |
| 初見（しょけん） | $3.49 | per month |
| リズム | $3.49 | per month |
| 聴音（ちょうおん） | $3.49 | per month |
| まとめ買い | $13.99 | per month |
| シュトラウス | $0.99 | one-time |
| 山田耕筰 | $0.99 | one-time |
| ドビュッシー | $0.99 | one-time |
| シベリウス | $0.99 | one-time |


### Solfe

[App page](https://appshunter.io/ios/app/solfe/id6792741742)

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

**In-app purchases:** none


## Frequently asked questions

### Is Primo free?

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

### Is Solfe free?

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

### Do Primo or Solfe have ads?

Neither Primo nor Solfe shows ads.

### Which is updated more often, Primo or Solfe?

Primo ships an update monthly, and Solfe every 3 days. Most recently, Primo was updated on September 25, 2026 and Solfe on October 13, 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.*