# 76477 Complex Sound Synth vs Musical Kittens

The clearest difference is review sentiment: Musical Kittens at 100% against 76477 Complex Sound Synth's 50%. Musical Kittens also leads on price (Free vs $2.99) and rating (4.3 vs 3.9). 76477 Complex Sound Synth's advantage is in-app purchases (none vs 1) and ads (none vs shown). On ratings volume and device support there is nothing between them.

Musical Kittens is free to download; 76477 Complex Sound Synth costs $2.99 up front. Musical Kittens sells 1 one-off in-app purchase. 76477 Complex Sound Synth asks for nothing beyond the download.

Musical Kittens holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 9 and 6 respectively. Written reviews point the same way: 50% of 76477 Complex Sound Synth's written reviews are positive against 100% of Musical Kittens's.

76477 Complex Sound Synth ships an update every 3 months, Musical Kittens every 15 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 76477 Complex Sound Synth | Musical Kittens |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.9 (9 ratings)](https://appshunter.io/ios/app/76477-complex-sound-synth/id837866239/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/musical-kittens/id1122553343/reviews)** |
| Number of ratings | **9** | 6 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 15 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 14 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [Brandon Stecklein](https://appshunter.io/developer/498894252) |

## What reviewers say

### 76477 Complex Sound Synth

[App page](https://appshunter.io/ios/app/76477-complex-sound-synth/id837866239)

Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.

**Highlights:** Three oscillators with multiple wave types, Modulation capabilities for oscillators, Adjustable noise generator with filter, Configurable ADSR envelope, Unlimited sound effect generator boards, MIDI input support, Export/import sound effect boards

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

**In-app purchases:** none


### Musical Kittens

[App page](https://appshunter.io/ios/app/musical-kittens/id1122553343)

Create unique musical compositions using adorable cat meows as sound effects. This application allows you to craft memorable cat music, save your creations, and share them with friends to impress them with your musical talent.

**Highlights:** Cat meow sound effects, Musical composition, Save songs, Share creations, Unique sound library

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising Removal | $1.99 | one-time |


## Frequently asked questions

### Is 76477 Complex Sound Synth free?

76477 Complex Sound Synth costs $2.99, with no in-app purchases.

### Is Musical Kittens free?

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

### Which has better reviews, 76477 Complex Sound Synth or Musical Kittens?

Musical Kittens is rated higher. 76477 Complex Sound Synth averages 3.9 out of 5 from 9 ratings, while Musical Kittens averages 4.3 from 6 ratings.

### Do 76477 Complex Sound Synth or Musical Kittens have ads?

Musical Kittens shows ads; 76477 Complex Sound Synth does not.

### Which is updated more often, 76477 Complex Sound Synth or Musical Kittens?

76477 Complex Sound Synth ships an update every 3 months, and Musical Kittens every 15 months. Most recently, 76477 Complex Sound Synth was updated on November 1, 2026 and Musical Kittens on November 2, 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.*