# ソルじぃが教えるソルフェージュ vs Primo

The clearest difference is review sentiment: ソルじぃが教えるソルフェージュ at 100% against Primo's 50%. ソルじぃが教えるソルフェージュ also leads on in-app purchases (none vs 10). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Primo sells 9 in-app purchases, starting at $3.49 per month. ソルじぃが教えるソルフェージュ asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | ソルじぃが教えるソルフェージュ | Primo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 209 MB | 258 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [K S MUSIC, Y.K.](https://appshunter.io/developer/1454205339) | [INTERNATIONAL LABORATORY OF MUSIC EDUCATION](https://appshunter.io/developer/1493879437) |

## What reviewers say

### ソルじぃが教えるソルフェージュ

[App page](https://appshunter.io/ios/app/id1454205340)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ソルじぃが教えるソルフェージュ free?

ソルじぃが教えるソルフェージュ is free to download, with no in-app purchases.

### Is Primo free?

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

### Do ソルじぃが教えるソルフェージュ or Primo have ads?

Neither ソルじぃが教えるソルフェージュ nor Primo shows ads.

### Which is updated more often, ソルじぃが教えるソルフェージュ or Primo?

ソルじぃが教えるソルフェージュ ships an update monthly, and Primo monthly. Most recently, ソルじぃが教えるソルフェージュ was updated on October 24, 2026 and Primo on October 24, 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.*