# Gradient Synth vs Nudisu

The clearest difference is in-app purchases: Nudisu at none against Gradient Synth's 5. Gradient Synth's advantage is update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Gradient Synth ships an update monthly, Nudisu every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Gradient Synth | Nudisu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (63 ratings)](https://appshunter.io/ios/app/gradient-synth/id6477543878/reviews)** | — |
| Number of ratings | **63** | — |
| Positive reviews | 61.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 38 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Apps Are Fun LLC](https://appshunter.io/developer/1659934806) | [Guru Prasad M](https://appshunter.io/developer/1836870306) |

## 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 |


### Nudisu

[App page](https://appshunter.io/ios/app/nudisu/id6752926430)

**Features:** macOS Compatibility, 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 Nudisu free?

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

### Do Gradient Synth or Nudisu have ads?

Neither Gradient Synth nor Nudisu shows ads.

### Which is updated more often, Gradient Synth or Nudisu?

Gradient Synth ships an update monthly, and Nudisu every 2 months. Most recently, Gradient Synth was updated on October 24, 2026 and Nudisu on October 30, 2026.

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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.*