# GreenCert vs Piano Soin

The clearest difference is in-app purchases: GreenCert at none against Piano Soin's 5. GreenCert also leads on iOS requirement (12.0 vs 14.0). Piano Soin's advantage is device support. On price there is nothing between them.

Both are free to download. Piano Soin sells 5 in-app purchases, starting at $3.99 per 7 days. GreenCert asks for nothing beyond the download.

## The numbers

| Metric | GreenCert | Piano Soin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (10 ratings)](https://appshunter.io/ios/app/piano-soin/id6499062147/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 53 MB | 98 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Effectit AB](https://appshunter.io/developer/1304522885) | [Piano Soin](https://appshunter.io/developer/1742277241) |

## What reviewers say

### GreenCert

[App page](https://appshunter.io/ios/app/greencert/id6443952939)

**In-app purchases:** none


### Piano Soin

[App page](https://appshunter.io/ios/app/piano-soin/id6499062147)

Learn to play the piano with structured lessons, interactive exercises, and a diverse repertoire. Get instant feedback on your performance and track your progress. Suitable for all levels, from beginner to advanced.

**Highlights:** Structured piano lessons, Performance evaluation, Diverse music repertoire, Interactive exercises, Play at your own pace, Works with any piano

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Piano Soin Premium | $3.99 | per 7 days |
| Piano Soin Premium | $11.99 | per month |
| Piano Soin Premium Basic | $11.99 | per month |
| Piano Soin Premium | $49.99 | per 3 months |
| Piano Soin Premium | $69.90 | per year |


## Frequently asked questions

### Is GreenCert free?

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

### Is Piano Soin free?

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

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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.*