# KeyFinder vs Moon Echo

The clearest difference is rating: Moon Echo at 4.9 against KeyFinder's 2.7. Moon Echo also leads on review sentiment (100% vs 60%). KeyFinder's advantage is ratings volume (322 vs 21). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Moon Echo holds the better App Store score, 4.9 against 2.7. That said, the two scores are not equally well evidenced: KeyFinder has 322 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 60% of KeyFinder's written reviews are positive against 100% of Moon Echo's.

## The numbers

| Metric | KeyFinder | Moon Echo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (322 ratings)](https://appshunter.io/ios/app/keyfinder/id301281917/reviews) | **[4.9 (21 ratings)](https://appshunter.io/ios/app/moon-echo/id6503342104/reviews)** |
| Number of ratings | **322** | 21 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Size | 5 MB | 21 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scoreless Music](https://appshunter.io/developer/301281920) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## What reviewers say

### KeyFinder

[App page](https://appshunter.io/ios/app/keyfinder/id301281917)

Identify the musical key of any song you're listening to. Use the integrated piano to play along and confirm notes, helping the app pinpoint the correct key. Explore music theory and learn to play songs in different keys.

**Highlights:** Identify song keys, Built-in piano keyboard, Note confirmation, Narrow down possible keys, Learn songs in any key

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💡 Useful for finding song keys
- 👍 Simple and effective key locking
- 💡 Cool LED display
- 💡 Good for songwriting aid
- 💡 Works well for intended purpose

**What reviewers complain about**

- 🤔 Hard to use and unclear
- 🤔 No sound produced
- 🤔 Limited key support (e.g., no C sharp)
- 🤔 Slow response to touch
- 🤔 Difficulty hearing keys with background music

**Reported bugs**

- No sound
- Slow response to touch
- Cannot play minor scales in Ref mode
- Difficulty controlling volume with background music

**Requested features**

- Bring the app back
- Update to 64bit
- Label notes on piano keys
- Ability to move up and down the keyboard
- More keys supported (hundreds)


### Moon Echo

[App page](https://appshunter.io/ios/app/moon-echo/id6503342104)

This free music app simulates echoes using the moon as a radio wave reflector. It creates unique, lively, and lo-fi effects modulated by celestial movements, offering a playful tool for both musicians and space enthusiasts.

**Highlights:** Moon-based echo simulation, Lo-fi musical effect, Celestial modulation, Space education tool, AUv3 and Standalone support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KeyFinder free?

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

### Is Moon Echo free?

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

### Which has better reviews, KeyFinder or Moon Echo?

Moon Echo is rated higher. KeyFinder averages 2.7 out of 5 from 322 ratings, while Moon Echo averages 4.9 from 21 ratings.

### Do KeyFinder or Moon Echo have ads?

Neither KeyFinder nor Moon Echo 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.*