# volumeCTRL vs AU Studio

The clearest difference is rating: AU Studio at 4.5 against volumeCTRL's 3.2. AU Studio also leads on update cadence (monthly vs every 9 months). volumeCTRL's advantage is price ($4.99 vs $9.99) and iOS requirement (11.0 vs 17.0). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

volumeCTRL costs $4.99 and AU Studio $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AU Studio holds the better App Store score, 4.5 against 3.2. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

volumeCTRL ships an update every 9 months, AU Studio monthly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | volumeCTRL | AU Studio |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | [3.2 (9 ratings)](https://appshunter.io/ios/app/volumectrl/id6444421682/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/au-studio/id6763809742/reviews)** |
| Number of ratings | **9** | 4 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 22 MB | 7 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [auDSPr](https://appshunter.io/developer/1439844877) | [Christian Thompson](https://appshunter.io/developer/1511795684) |

## What reviewers say

### volumeCTRL

[App page](https://appshunter.io/ios/app/volumectrl/id6444421682)

Gain precise control over your device's audio levels with this utility app. Adjust volume by percentage or dBFS, fine-tune with incremental steps, and temporarily dim or mute sound. Ideal for music, podcasts, and late-night media consumption.

**Highlights:** Precise volume adjustment by percentage or dBFS, Keypad for exact value input, Fine-tune volume with customizable step sizes, Temporary dim and mute functions, Seamless integration with device volume controls, Universal app for iPhone, iPad, and iPod touch

**In-app purchases:** none


### 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


## Frequently asked questions

### Is volumeCTRL free?

volumeCTRL costs $4.99, with no in-app purchases.

### Is AU Studio free?

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

### Which has better reviews, volumeCTRL or AU Studio?

AU Studio is rated higher. volumeCTRL averages 3.2 out of 5 from 9 ratings, while AU Studio averages 4.5 from 4 ratings.

### Do volumeCTRL or AU Studio have ads?

Neither volumeCTRL nor AU Studio shows ads.

### Which is updated more often, volumeCTRL or AU Studio?

volumeCTRL ships an update every 9 months, and AU Studio monthly. Most recently, volumeCTRL was updated on October 5, 2026 and AU Studio on October 1, 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.*