# FabFilter Pro-C 2 — Compressor plug-in

> Professional audio compressor plug-in for real-time audio processing and mixing. (iPhone/iPad app by FabFilter.)

- Source: https://appshunter.io/ios/app/fabfilter-pro-c-2/id1468123337 (this page in markdown: same URL + `.md`)
- Developer: [FabFilter](https://appshunter.io/developer/421796789)
- Category: Music, Music
- Price: $29.99
- Rating: 4.82/5 from 22 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 4 MB
- Languages: English
- Released: 2019-06-21
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fabfilter-pro-c-2/id1468123337/reviews.md

## What is FabFilter Pro?

FabFilter Pro-C 2 is a professional compressor plug-in with very high quality sound, flexible side chain options, beautiful program-dependent compression styles and a stunning user interface.

The Pro-C 2 app filters the microphone input and plays it back in real-time. To use Pro-C 2 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-C 2 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

Key features:

- Eight different compression style: Clean, Classic, Opto, Vocal, Mastering, Bus, Punch and Pumping
- Polished and user-friendly interface, with (optional) animated level knee displays and accurate peak/loudness metering
- Side-chain EQ section, with customizable HP and LP filters, plus an additional freely adjustable filter
- Program-dependent attack and release curves
- Variable lookahead (up to 20 ms), which can be enabled/disabled to ensure zero-latency processing
- Intelligent Auto Gain
- Hold (up to 500 ms)
- Custom knee, variable from hard knee to a 72 dB soft knee (to enable saturation-like effects)
- Auto Release
- Up to 4x oversampling
- Variable stereo linking and mid/side processing, with mid-only, side-only, M > S and S > M processing
- Audition Triggering option, which enables users to hear on which parts of the audio FabFilter Pro-C 2 is triggering and how much compression is being applied
- Range setting, which limits the maximum applied gain change
- Mix setting, which scales the gain change from 0% to 200%
- Accurate, large level and gain meters, with peak and loudness level visualization (which complies with the Momentary mode of the EBU R128 / ITU-R 1770 standards)
- External side-chain triggering
- Optional MIDI triggering
- Undo/redo and A/B comparison

"Pro-C 2 is set to become a staple of many professionals' toolkits. Everyone needs a good compressor, and there are few as good as this. A future classic. Verdict: 10/10!"
— MusicTech Magazine

"From its excellent sound quality to its extensive feature set and in- formative interface, the Pro-C 2 is a must-have dynamics processor."
— Electronic Musician

## Key features

- Eight compression styles
- User-friendly interface with detailed metering
- Flexible side-chain EQ
- Program-dependent attack/release
- Variable lookahead and hold
- Mid/side processing
- Audition triggering

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/fabfilter-pro-c-2/id1468123337/reviews.md

### 3/5 — Best compressor, except one glitch…

*2021-09-23*

…it does not currently work with n-Track Studio Pro. I will happily change my rating to 5 stars if this fabulous compressor will update so it is visible when used as an effect in n-Track Pro. This is the most transparent compressor on iOS, and this glitch is its only flaw. Please repair this great app.

### 3/5 — Sidechain

*2021-04-24*

It’s a great tool. But now, We are on iPad OS 14. Please update the code to allow to sidechain like the version of Pro-C2 allows in the DAW Auria Pro. When updating the code ill give a 5 out of 5 but untill then I currently give 3 out of 5.

### 5/5 — A must have

*2020-10-02*

Thes best compressor on IOS. Want those  kicks to cut threw the mix, slap this filter on it!

### 1/5 — Very disappointed

*2019-09-19*

Does NOT have any side chain capabilities as advertised, shame as the plugins would be excellent.

**Developer response:** This depends on the capabilities of the AUv3 host.

### 5/5 — Don't doubt the FabFilter

*2019-07-03*

I've already written 3 reviews of their apps, so I'm running short on attention span, so I'll just say 99 stars.

## Frequently asked questions about FabFilter Pro

### What is FabFilter Pro-C 2?

FabFilter Pro-C 2 is a professional audio compressor plug-in designed for high-quality sound and flexible control. It filters microphone input in real-time and can be used within AUv3-compatible host applications on iPad.

### What are the different compression styles available in FabFilter Pro-C 2?

FabFilter Pro-C 2 offers eight distinct compression styles: Clean, Classic, Opto, Vocal, Mastering, Bus, Punch, and Pumping, allowing for versatile sound shaping.

### How does the side-chain EQ section work in FabFilter Pro-C 2?

The side-chain EQ section includes customizable HP and LP filters, plus an additional freely adjustable filter. This allows for precise control over which frequencies trigger the compression.

### Can I hear when FabFilter Pro-C 2 is triggering compression?

Yes, the Audition Triggering option allows users to hear the specific parts of the audio where FabFilter Pro-C 2 is activating and the amount of compression being applied.

### What devices is FabFilter Pro-C 2 compatible with?

FabFilter Pro-C 2 is currently supported on iPad devices. It requires an AUv3-compatible host app to function as a plug-in.

### How often is FabFilter Pro-C 2 updated?

FabFilter Pro-C 2 was last updated on December 20, 2023, with version 2.18. This indicates a relatively active development cycle for the application.

### What is the user sentiment for FabFilter Pro-C 2?

Users generally have a very positive sentiment towards FabFilter Pro-C 2, reflected in its high rating of 4.8 stars from 22 ratings. Professional reviews also praise its sound quality and features.

### Does FabFilter Pro-C 2 have ads?

No, FabFilter Pro-C 2 does not contain advertisements. As a paid application, it provides an uninterrupted user experience focused on audio processing.

## Version history (last 5 releases)

### 2.18 — 2023-12-20

- Added Export Preset Folder command to the preset options menu that enables you to export the entire preset folder, so you can load these presets on Mac or Windows.
- Fixed crash when opening the interface in Camelot Pro.
- Minor fixes and improvements.

### 2.14 — 2021-12-14

Small bug fixes and improvements.

### 2.13 — 2021-07-06

- Added Share Preset and Options > Import Preset and Import Preset Folder commands to the preset menu: this makes it possible to share presets with other iOS and Mac/PC devices.
- Fixed incorrect text colors for editing in Dark Mode: this made it impossible to see the typed text.

### 2.11 — 2020-09-24

Fixed a problem that caused the interface to not show up on iOS 14 the first time it is opened.

### 2.10 — 2020-06-25

Small bug fixes and improvements.

## Apps similar to FabFilter Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Fosfat](https://appshunter.io/ios/app/fosfat/id1627529212) | 5.0 (3) | $14.99 | Music |
| [Analyser & Tuner AUv3 Plugin](https://appshunter.io/ios/app/analyser-and-tuner-auv3-plugin/id1436332576) | 3.8 (16) | $8.99 | Music |
| [FAC Bandit](https://appshunter.io/ios/app/fac-bandit/id1458633968) | 5.0 (52) | $9.99 | Music |
| [QVox](https://appshunter.io/ios/app/qvox/id1488786684) | 4.3 (16) | $7.99 | Music |
| [Lagrange - AUv3 Plug-in Synth](https://appshunter.io/ios/app/lagrange-auv3-plug-in-synth/id1479000758) | 4.8 (55) | $9.99 | Music |
| [TAIP - Baby Audio](https://appshunter.io/ios/app/taip-baby-audio/id6446287957) | 5.0 (6) | $19.99 | Music |

## More apps by FabFilter

- [FabFilter Pro-Q 2](https://appshunter.io/ios/app/fabfilter-pro-q-2/id1401182622)
- [FabFilter Pro-DS](https://appshunter.io/ios/app/fabfilter-pro-ds/id1468273683)
- [FabFilter Pro-G](https://appshunter.io/ios/app/fabfilter-pro-g/id1468277373)
- [FabFilter Pro-MB](https://appshunter.io/ios/app/fabfilter-pro-mb/id1468280455)
- [FabFilter Pro-L 2](https://appshunter.io/ios/app/fabfilter-pro-l-2/id1468295823)

All apps by FabFilter: https://appshunter.io/developer/421796789

---

*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 2026-06-01.*