# WU: AUPeakLimiter — Peak Limiter Audio Unit

> Audio Unit plugin for consistent sound across music production hosts. (iPhone/iPad app by Jens Guell.)

- Source: https://appshunter.io/ios/app/wu-aupeaklimiter/id1530887064 (this page in markdown: same URL + `.md`)
- Developer: [Jens Guell](https://appshunter.io/developer/1195004865)
- Category: Music, Utilities, Music
- Price: Free (on sale, was $3.99)
- Rating: 3.00/5 from 4 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 30 MB
- Languages: English
- Released: 2020-09-08
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/wu-aupeaklimiter/id1530887064/reviews.md

## What is WU?

The WU (Wrapped Units) Series audio units exposes the user interface of the systems Audio Unit and makes it available to all host applications that support AUv3 audio processing plugins. Even if those hosts do not support UI-less units. Use the effect, well known from GarageBand on MacOS and iOS with any host application and ensure consistent sound with all your projects.

## Key features

- Exposes system Audio Unit user interface
- Compatible with AUv3 hosts
- Ensures consistent sound across projects
- Brings GarageBand-like features to any host
- Supports UI-less units


## Frequently asked questions about WU

### What is WU: AUPeakLimiter?

WU: AUPeakLimiter is an audio processing plugin that makes system Audio Units accessible within any AUv3 compatible host application. It's designed to ensure consistent sound quality across all your music projects.

### Is WU: AUPeakLimiter free to use?

Yes, WU: AUPeakLimiter is available for free. There are no in-app purchases or subscription fees associated with its use.

### What devices does WU: AUPeakLimiter support?

WU: AUPeakLimiter is supported on iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is WU: AUPeakLimiter updated?

The app was last updated on March 12, 2024, indicating ongoing development and support. The latest version is 1.21.

### What is the age rating for WU: AUPeakLimiter?

WU: AUPeakLimiter has an age rating of 4+. This suggests it is suitable for a wide audience, including younger users.

### Can WU: AUPeakLimiter be used offline?

As an audio processing plugin, WU: AUPeakLimiter functions within a host application. Its offline capability would depend on the host application's ability to work without an internet connection.

### What is the user sentiment for WU: AUPeakLimiter?

Based on the available data, WU: AUPeakLimiter has a rating of 3.0 stars from 4 ratings. This indicates a mixed reception from its current user base.

### Does WU: AUPeakLimiter have ads?

The provided data does not specify whether WU: AUPeakLimiter contains advertisements. However, it is listed as free and does not have in-app purchases.

## Version history (last 3 releases)

### 1.21 — 2024-03-12

The project was updated for Apple's latest compilers and frameworks.

### 1.2 — 2021-02-01

WU Series Maintenance Update 1.2 (January 2021)

- fixed a multiple instances problem with the editors
- fixed a wrong icon assignment of the highpass filter unit
- fixed a parameter assignment bug, if the units define special addresses
- fixed possible adjustment of read-only parameters
  please note, that read-only parameters are still displayed with the interface
- added parameter min/max value validity checking
- re-adjusted finer control of the sliders
- added support for string values
- added support for labels for indxed parameters
- re-adjusted some label sizes and positions
- added fixed point formatting for floating point parameter values
- completely removed resizing control from the UI
- disabled gestures for resizing and positioning internal view
- reduced diagnostic printout during load
- removed MIDI assignment extension due to problems with some hosts,
  which send unwanted MIDI controllers and initializers to chained effects
- all WU units are now exposed a standard audio effects (aufx),
  effectively increasing the amount of hotsts supporting them
- please note, that any extensions to these units would
  make the aupreset format incompatible with the original
  and no longer share-able across platforms and hosts

- added the AUPitch shifter unit to the collection
  please note that the pitch shifter has one parameter,
  that is not intended for realtime use
- added the AUMIDISynthesizer to the collection
  this unit is a multitimbre multi MIDI channel sound module
  with a standard General MIDI compatible sound bank.
- added the AUSampler unit with a set of GM based presets
  please note that this release is a preview release for the
  capabilities of the sampler unit and its file format

### 1.0 — 2020-09-09

No release notes.

## Apps similar to WU

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ChannelStrip LE](https://appshunter.io/ios/app/channelstrip-le/id6449458611) | 4.7 (9) | Free | Music |
| [Vocal Remover, Audio Extractor](https://appshunter.io/ios/app/vocal-remover-audio-extractor/id6445925420) | 4.0 (9) | Free | Music |
| [Albums: Music Shortcuts](https://appshunter.io/ios/app/albums-music-shortcuts/id1602404960) | 4.8 (25) | Free | Music |
| [Water Remover - Clean Speaker](https://appshunter.io/ios/app/water-remover-clean-speaker/id1610859000) | 4.2 (104) | Free | Music |
| [Reverse Sound: Audios & Videos](https://appshunter.io/ios/app/reverse-sound-audios-and-videos/id1642228740) | 4.3 (6) | Free | Music |
| [MIDImatic](https://appshunter.io/ios/app/midimatic/id1619626260) | 5.0 (1) | Free | Music |

## More apps by Jens Guell

- [GM MIDI Player](https://appshunter.io/ios/app/gm-midi-player/id1445780869)
- [MIDI SWEET : Clock Sync (AU)](https://appshunter.io/ios/app/midi-sweet-clock-sync-au/id1454284852)
- [JAF Model One](https://appshunter.io/ios/app/jaf-model-one/id1472652593)
- [JAF Collection](https://appshunter.io/ios/app/jaf-collection/id1472896422)
- [JAX Stereo Tool (AU)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302)
- [JAX !Make Louder (Audio Unit)](https://appshunter.io/ios/app/jax-make-louder-audio-unit/id1474614677)

All apps by Jens Guell: https://appshunter.io/developer/1195004865

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*