# KSMストア vs Primo

The clearest difference is in-app purchases: KSMストア at none against Primo's 10. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | KSMストア | Primo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 258 MB |
| Requires iOS | **11.0** | 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

### KSMストア

[App page](https://appshunter.io/ios/app/ksm/id1456990866)

**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 KSMストア free?

KSMストア is free to download, with no in-app purchases.

### Is Primo free?

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

### Do KSMストア or Primo have ads?

Neither KSMストア nor Primo shows ads.

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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.*