# Gradient Synth vs Moon Echo

The clearest difference is review sentiment: Moon Echo at 100% against Gradient Synth's 62%. Moon Echo also leads on in-app purchases (none vs 5) and rating (4.9 vs 4.4). Gradient Synth's advantage is ratings volume (63 vs 21). On price, ads and device support there is nothing between them.

Both are free to download. Gradient Synth sells 5 in-app purchases, starting at $9.99 per year. Moon Echo asks for nothing beyond the download.

Moon Echo holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 63 and 21 respectively. Written reviews point the same way: 62% of Gradient Synth's written reviews are positive against 100% of Moon Echo's.

## The numbers

| Metric | Gradient Synth | Moon Echo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (63 ratings)](https://appshunter.io/ios/app/gradient-synth/id6477543878/reviews) | **[4.9 (21 ratings)](https://appshunter.io/ios/app/moon-echo/id6503342104/reviews)** |
| Number of ratings | **63** | 21 |
| Positive reviews | 61.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 21 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Apps Are Fun LLC](https://appshunter.io/developer/1659934806) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## What reviewers say

### Gradient Synth

[App page](https://appshunter.io/ios/app/gradient-synth/id6477543878)

Transform colors into unique sounds with this intuitive music creation app. Designed for beginners and children, it offers a user-friendly interface and powerful features to explore and customize a wide range of audio experiences.

**Highlights:** Preset Generator, Color-based sound customization, User-friendly interface, MIDI keyboard integration, Dynamic audio effects, Polyphony

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gradient Synth Supporter (Yearly) | $9.99 | per year |
| Unlimited Presets | $19.99 | per year |
| 10 Presets | $0.99 | one-time |
| 75 Presets | $4.99 | one-time |
| Lifetime Unlock | $12.99 | one-time |


### 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 Gradient Synth free?

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

### Is Moon Echo free?

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

### Which has better reviews, Gradient Synth or Moon Echo?

Moon Echo is rated higher. Gradient Synth averages 4.4 out of 5 from 63 ratings, while Moon Echo averages 4.9 from 21 ratings.

### Do Gradient Synth or Moon Echo have ads?

Neither Gradient Synth 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.*