# 4Comp: AUv3 Compressor

> 4Comp: AUv3 Compressor (iPhone/iPad app by NATHAN THOMAS MATHIS.)

- Source: https://appshunter.io/ios/app/4comp-auv3-compressor/id6805205834 (this page in markdown: same URL + `.md`)
- Developer: [NATHAN THOMAS MATHIS](https://appshunter.io/developer/1870347850)
- Category: Music
- Price: $4.99
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Chinese, Spanish and 1 more
- Released: 2026-10-01
- Data updated: 2026-10-03
- User reviews in markdown: https://appshunter.io/ios/app/4comp-auv3-compressor/id6805205834/reviews.md

## What is 4Comp?

4Comp re-skins itself to match the compressor you pick. Choose FET, VCA, Optical or Vari-Mu and the whole interface — face, knobs, meters — takes on that hardware's colours, so the plugin feels like the machine you're reaching for.

FET
Fast gain reduction from a feedback detector, with an all-buttons mode. Hi-hats, drum buses, spiky guitars. Ice-blue face.

VCA
Bus glue with program-dependent AUTO release. Tames transients and spikes without grabbing. Crimson face.

Optical
Smooth, level-dependent release from a modelled photocell — the cell's light memory. Vocals, brass, strings. Electroluminescent-green face.

Vari-Mu
A ratio that rises with level, plus harmonic colour that thickens thin tracks. Mix bus and mastering. Brass face.

Four separate DSP paths
Each model is its own compressor engine rather than a preset over one circuit: feedback FET, two-stage VCA, photocell release, rising-ratio tube. Switch faceplates mid-session and the plugin animates to the new model's look.

Complement it
Stereo link (Linked or Dual Mono), sidechain high-pass, dry/wet mix, input/output and auto make-up gain, a VU-style gain-reduction needle and 17 presets. Real-time-safe DSP, 0-sample latency by default.


## Version history (last 1 release)

### 1.0.0 — 2026-10-01

No release notes.

## More apps by NATHAN THOMAS MATHIS

- [NAM AUv3: Neural Amp Modeler](https://appshunter.io/ios/app/nam-auv3-neural-amp-modeler/id6791673543)
- [Chromatic Tuner AUv3](https://appshunter.io/ios/app/chromatic-tuner-auv3/id6791699061)
- [PitchLock: AUv3 Vocal Tuner](https://appshunter.io/ios/app/pitchlock-auv3-vocal-tuner/id6791833535)
- [Reverie: AUv3 Plate Reverb](https://appshunter.io/ios/app/reverie-auv3-plate-reverb/id6798475883)

All apps by NATHAN THOMAS MATHIS: https://appshunter.io/developer/1870347850

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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 2026-10-03.*