# Fuzz Droid vs Robot Butter

The clearest difference is price: Fuzz Droid at Free against Robot Butter's $14.99. Fuzz Droid also leads on iOS requirement (14.0 vs 17.0). Robot Butter's advantage is in-app purchases (none vs 2). On rating, ratings volume, update cadence and ads there is nothing between them.

Fuzz Droid is free to download; Robot Butter costs $14.99 up front. Fuzz Droid sells 2 one-off in-app purchases. Robot Butter asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Fuzz Droid against 5.0 for Robot Butter. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Fuzz Droid ships an update every 6 weeks, Robot Butter monthly. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Fuzz Droid | Robot Butter |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/fuzz-droid-distortion-effect/id6759922369/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/robot-butter/id6759990682/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 12 MB | 7 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Sketch Audio, LLC](https://appshunter.io/developer/1699093348) | [Christian Thompson](https://appshunter.io/developer/1511795684) |

## What reviewers say

### Fuzz Droid

[App page](https://appshunter.io/ios/app/fuzz-droid-distortion-effect/id6759922369)

This app provides a powerful distortion effect inspired by a modular mixer's gain stage, offering hyper-aggressive sounds with massive harmonics. It features two distinct distortion circuits, advanced tone-shaping, and morphing capabilities for dynamic sound transitions.

**Highlights:** Two asymmetric distortion circuits, Custom smoothing function, Flexible tone-shaping filters, Morph settings for transitions, Auto bypass for CPU saving, HQ mode with 4x oversampling, Light and dark interface modes

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two-week Trial | Free | one-time |
| Full Unlock | $2.99 | one-time |


### Robot Butter

[App page](https://appshunter.io/ios/app/robot-butter/id6759990682)

This audio effect app creates dynamic soundscapes by blending animated modulation, adaptive reverb, and digital textures. It offers a fast, playable interface with direct control over key parameters and tempo-synced movement for evolving sound design.

**Highlights:** AUv3 audio effect for iPhone, iPad, and macOS, Animated modulation engine, Adaptive reverb stage, Tempo-synced LFO matrix, Digital texture effects, Built-in user manual, Factory and user presets

**In-app purchases:** none


## Frequently asked questions

### Is Fuzz Droid free?

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

### Is Robot Butter free?

Robot Butter costs $14.99, with no in-app purchases.

### Which has better reviews, Fuzz Droid or Robot Butter?

Fuzz Droid and Robot Butter are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Fuzz Droid or Robot Butter have ads?

Neither Fuzz Droid nor Robot Butter shows ads.

### Which is updated more often, Fuzz Droid or Robot Butter?

Fuzz Droid ships an update every 6 weeks, and Robot Butter monthly. Most recently, Fuzz Droid was updated on October 8, 2026 and Robot Butter on October 17, 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.*