# FoundKey vs SunScore

FoundKey and SunScore are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. FoundKey sells 1 one-off in-app purchase and SunScore sells 6 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | FoundKey | SunScore |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (20 ratings)](https://appshunter.io/ios/app/sunscore-learn-piano/id6762116816/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 16.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | — | Subscription |
| Size | 12 MB | 341 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Islam Seisembay](https://appshunter.io/developer/1505964950) | [ADRIAN GONZALEZ CARPINTERO](https://appshunter.io/developer/1892983075) |

## What reviewers say

### FoundKey

[App page](https://appshunter.io/ios/app/foundkey/id6758138511)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FoundKey Premium | $4.99 | one-time |


### SunScore

[App page](https://appshunter.io/ios/app/sunscore-learn-piano/id6762116816)

Transform any sheet music into an interactive learning experience. Connect your piano, play along, and receive instant feedback. Upload sheet music via photo, PDF, or digital score to practice exercises, explore a song library, and test your skills.

**Highlights:** Upload any sheet music (photo, PDF, MusicXML), AI transcription of sheet music, Interactive piano practice with feedback, Isolate hands and loop sections, Exercises for piano mastery, Library of free songs, Skill testing and progress tracking

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Monthly | $11.99 | per month |
| Pro Monthly | $19.99 | per month |
| Standard Yearly | $47.99 | per year |
| Pro Yearly | $77.99 | per year |
| Standard Yearly | $95.99 | per year |
| Pro Yearly | $155.99 | per year |


## Frequently asked questions

### Is FoundKey free?

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

### Is SunScore free?

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

### Do FoundKey or SunScore have ads?

Neither FoundKey nor SunScore 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.*