# Audio Unit Player vs Contour

Audio Unit Player and Contour both sit at 3.9 stars, but that hides the real split: 67% of Audio Unit Player's written reviews are positive against 0% of Contour's. Audio Unit Player also leads on ratings volume (32 vs 2). Contour's advantage is ads (none vs shown) and update cadence (weekly vs every 2 weeks). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. Audio Unit Player sells 1 one-off in-app purchase and Contour sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.9 for Audio Unit Player against 4.0 for Contour. That said, the two scores are not equally well evidenced: Audio Unit Player has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 67% of Audio Unit Player's written reviews are positive against 0% of Contour's.

Audio Unit Player ships an update every 2 weeks, Contour weekly. Both last shipped on October 29, 2026.

## The numbers

| Metric | Audio Unit Player | Contour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (32 ratings)](https://appshunter.io/ios/app/audio-unit-player/id734191615/reviews) | **[4.0 (2 ratings)](https://appshunter.io/ios/app/contour-ambient-morph-synth/id6798038727/reviews)** |
| Number of ratings | **32** | 2 |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 5 MB | 108 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [Chih Han Lin](https://appshunter.io/developer/1800248325) |

## What reviewers say

### Audio Unit Player

[App page](https://appshunter.io/ios/app/audio-unit-player/id734191615)

This music player offers real-time audio processing, including time stretching, pitch shifting, and a 31-band equalizer. It supports AUv3 effects and allows for A-B loop playback, making it ideal for practice, transcription, and performance adjustments.

**Highlights:** Real-time time stretch (50-200%), Real-time pitch shift (-12 to +12 semitones), 31-band equalizer with presets, AUv3 effects support, A-B loop playback, Background playback, Audio file export

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Always remove banner ads. | $3.99 | one-time |


### Contour

[App page](https://appshunter.io/ios/app/contour-ambient-morph-synth/id6798038727)

This app is a unique musical instrument played by touch. It uses a visual interface where your finger's position determines the sound, offering a novel way to create drones, textures, and pads. It also functions as an AUv3 plugin for use in other music production apps.

**Highlights:** Touch-based sound generation, Perceptual distance mapping, Eleven distinct sound sheets, MIDI input and ribbon controller, AUv3 plugin support, Recording functionality (Pro), Customizable sound sheets (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contour Pro | $3.99 | one-time |


## Frequently asked questions

### Is Audio Unit Player free?

Audio Unit Player is free to download, with in-app purchases available.

### Is Contour free?

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

### Which has better reviews, Audio Unit Player or Contour?

Contour is rated higher. Audio Unit Player averages 3.9 out of 5 from 32 ratings, while Contour averages 4.0 from 2 ratings.

### Do Audio Unit Player or Contour have ads?

Audio Unit Player shows ads; Contour does not.

### Which is updated more often, Audio Unit Player or Contour?

Audio Unit Player ships an update every 2 weeks, and Contour weekly. Most recently, Audio Unit Player was updated on October 29, 2026 and Contour on October 29, 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.*