# Schlap AUv3 — Aggressive Compressor Plugin

> Aggressive program-dependent AUv3 compressor plugin for dynamic music production. (iPhone/iPad app by Caelum Audio.)

- Source: https://appshunter.io/ios/app/schlap-auv3/id1544325236 (this page in markdown: same URL + `.md`)
- Developer: [Caelum Audio](https://appshunter.io/developer/1463219587)
- Category: Music
- Price: $4.99
- Rating: 4.90/5 from 17 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 5 MB
- Released: 2020-12-31
- Data updated: 2026-08-14
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/schlap-auv3/id1544325236/reviews.md

## What is Schlap AUv3?

Schlap is a characterful, colourful and aggressive sounding program-dependent AUv3, IAA & standalone compressor. It takes inspiration from hardware RMS compressors of the past and evolves them into a modern setting. If you want your tracks to be energetic, in-your-face and bold, make ‘em ‘Schlap’. 

The compressor uses a program-dependent attack and release influenced by old hardware which makes the compression sound characterful and dynamic.

The RMS detection means that Schlap detects the average loudness of a signal, resulting in sudden short peaks being uncompressed so that they can attack hard and sound heavy hitting. Also inherently in RMS detection, there is a slight delay in compression which allows the initial, early transients to sneak through uncompressed so they keep their punch.

You’ve got a safe, controlled track you think you’re happy with, but you have to ask yourself… ‘Does it Schlap?’

Schlap is both a stand-alone application as well as an AUv3 plugin, meaning it works within iOS and iPadOS hosts such as GarageBand.

## Key features

- Aggressive program-dependent compressor
- RMS detection for dynamic sound
- Standalone app and AUv3 plugin
- Inspired by vintage hardware
- Enhances track energy and impact

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/schlap-auv3/id1544325236/reviews.md

### 5/5 — It does indeed Schlap

*2026-03-20*

Mhmm, good for a proper wallop

### 5/5 — Funktioniert wie gewünscht

*2025-06-29, version 1.1.0*

Top

### 5/5 — Excellent for drums

*2024-11-21*

This is fantastic value. The sidechain functionality is brilliant— I find the filter envelope mode to be really useful.

### 5/5 — Absolute favorite compressor

*2021-09-04*

I can’t remember the last time I enjoyed and understood a compressor this well . There’s such a range of character to this and it hits hard as heck. I can’t do it any justice explaining it but I assure you, this is the meanest compressor for iOS. I hope they have this for windows now

### 5/5 — Macht was er soll...

*2021-02-09, version 1.0.1*

...und das richtig gut!

### 5/5 — Goodness

*2021-01-22*

This is my new go to compressor. Love the presets. Very easy to dial into the sweetness you’re after. Money well spent. Looking forward to future apps by this developer.

### 5/5 — Love it.  Just simple enough

*2021-01-06*

Found that perfect fine line between simplicity and “feature packed” (mess).

Love it

### 5/5 — Stunning compressor ⭐️⭐️⭐️⭐️⭐️

*2021-01-04*

I am one Happy Schlapper.
Very good control 
Nice ui
Responsive developer 
Just buy it, it's awesome.....👍

## Frequently asked questions about Schlap AUv3

### What is Schlap AUv3?

Schlap AUv3 is an aggressive, program-dependent compressor plugin that can be used as a standalone app or within compatible music production hosts on iOS and iPadOS. It is designed to add energy and punch to audio tracks.

### How does Schlap AUv3's RMS detection work?

Schlap AUv3 uses RMS detection, which measures the average loudness of a signal. This allows short peaks to pass uncompressed for a harder attack and maintains the punch of initial transients due to a slight delay in compression.

### What devices does Schlap AUv3 support?

Schlap AUv3 is supported on iPhone, iPad, and iPod touch devices. It operates within iOS and iPadOS environments.

### What is the price of Schlap AUv3?

Schlap AUv3 is available for a one-time purchase of $4.99. There are no in-app purchases or subscription fees associated with the app.

### How often is Schlap AUv3 updated?

The latest version of Schlap AUv3 is 1.1.0, which was released on November 4, 2022. Updates are released periodically by the developer, Caelum Audio Ltd.

### Is Schlap AUv3 suitable for beginners?

While Schlap AUv3 offers advanced features inspired by hardware compressors, its program-dependent nature can simplify achieving aggressive compression. Beginners can experiment with its settings to learn about dynamic processing.

### Does Schlap AUv3 have ads?

No, Schlap AUv3 does not contain advertisements. It is a paid application that provides an ad-free experience for users.

### What is the age rating for Schlap AUv3?

Schlap AUv3 has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content concerns.

## Version history (last 3 releases)

### 1.1.0 — 2022-11-04

New Features:
- Colour gives the compressor more character. It will add a satisfying crunch that will make your ears feel the Schlap.
- Filter listen can be used to listen to the filtered side chain signal.
- Mix can be used to dial in parallel compression.
- New presets.
- Optimisations.

### 1.0.1 — 2021-01-06

Bug Fix: Fixed audio glitches in filters when variable buffer sizes are used.

### 1.0 — 2021-01-01

No release notes.

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## More apps by Caelum Audio

- [One Loop](https://appshunter.io/ios/app/one-loop/id1463219588)
- [Tape Cassette](https://appshunter.io/ios/app/tape-cassette/id1488648013)
- [Tape Cassette 2](https://appshunter.io/ios/app/tape-cassette-2/id1507434173)
- [Tape Pro](https://appshunter.io/ios/app/tape-pro/id1527986817)
- [Smoov AUv3](https://appshunter.io/ios/app/smoov-auv3/id1545474672)

All apps by Caelum Audio: https://appshunter.io/developer/1463219587

## Related topics

[nightshine auv3 compressor](https://appshunter.io/ios/topics/nightshine-auv3-compressor)

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*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 2026-08-14.*