# AU Studio vs StrumTune

The clearest difference is price: StrumTune at Free against AU Studio's $9.99. AU Studio's advantage is device support (4 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

StrumTune is free to download; AU Studio costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | AU Studio | StrumTune |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/au-studio/id6763809742/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Paid | — |
| Size | 7 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christian Thompson](https://appshunter.io/developer/1511795684) | [Cafo Kajmer](https://appshunter.io/developer/1878743006) |

## What reviewers say

### AU Studio

[App page](https://appshunter.io/ios/app/au-studio/id6763809742)

This app acts as a dedicated host for Audio Unit extensions, allowing musicians and developers to inspect, audition, and test installed audio plugins. It provides detailed information about each unit's capabilities and behavior without requiring a full digital audio workstation.

**Highlights:** Scan and catalog installed Audio Units, Filter plugins by developer, type, and status, Load AUv3 interfaces or use detailed inspector, Inspect registry identity, MIDI support, and parameters, Route CoreMIDI sources and audition audio effects, Monitor runtime CPU and memory usage, Built-in manual for guidance

**In-app purchases:** none


### StrumTune

[App page](https://appshunter.io/ios/app/strumtune/id6802655431)

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

**In-app purchases:** none


## Frequently asked questions

### Is AU Studio free?

AU Studio costs $9.99, with no in-app purchases.

### Is StrumTune free?

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

### Do AU Studio or StrumTune have ads?

Neither AU Studio nor StrumTune 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.*