# FabFilter Pro-Q 3 — High-quality equalizer plug-in

> Professional mastering-grade EQ plug-in with advanced features and exceptional sound quality. (iPhone/iPad app by FabFilter.)

- Source: https://appshunter.io/ios/app/fabfilter-pro-q-3/id1469019469 (this page in markdown: same URL + `.md`)
- Developer: [FabFilter](https://appshunter.io/developer/421796789)
- Category: Music
- Price: $29.99
- Rating: 4.70/5 from 47 App Store ratings · 25 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 5 MB
- Languages: American English
- Released: 2019-06-21
- Data updated: 2026-06-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fabfilter-pro-q-3/id1469019469/reviews.md

## What is FabFilter Pro?

FabFilter Pro-Q 3 is a top-quality EQ plug-in with up to 24 bands, perfect analog modeling, dynamic EQ, linear phase processing, and a gorgeous interface with unrivalled ease of use. With its unique Natural Phase mode, it matches both the magnitude and phase response of analog EQing perfectly. Innovative features like Spectrum Grab and collision detection together with its intelligent interactive EQ display make Pro-Q 3 an absolute joy to use.

The Pro-Q 3 app filters the microphone input and plays it back in real-time. To use Pro-Q 3 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-Q 3 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

Key features:

- Professional mastering-grade EQ plugin with exceptional sound quality
- Up to 24 bands with a huge range of filter types
- (New) Dynamic EQ option for every band
- Filter shapes: Bell, Notch, High/Low Shelf, High/Low Cut, Band Pass, Tilt Shelf, Flat Tilt (New)
- 6-96dB/octave slopes for all filter types
- (New) Additional Brickwall slope for the High Cut and Low Cut filters
- (New) Per-band Stereo, Left, Right, Mid or Side mode
- Zero Latency, Natural Phase and Linear Phase processing modes
- Powerful real-time spectrum analyzer
- (New) External spectrum visualization from any other Pro-Q 3 instance in the session, including collision detection
- Spectrum Grab: grab and adjust a peak directly in the spectrum analyzer (Improved)
- EQ Match for imposing the tonal characteristics of one signal on another
- Extremely efficient processing and low memory usage
- Intelligent multiband selection and editing
- Intelligent band solo mode
- Piano Display switches the frequency scale to musical note values
- Separate Mastering (3/6dB) and Mixing (12/30dB) display ranges
- Save, restore and organize presets
- Optional Gain-Q interaction
- Auto Gain and Gain Scale
- Phase Invert option to change polarity
- Large output level meter with peak level readout
- MIDI Learn with option to control the currently active band
- Undo/redo and A/B comparison

"Pro-Q 3 is a wonderful update to an (arguably) already class-leading equalizer. The best just got better! Verdict: 10/10!"
— Future Music Magazine

"Pro-Q 3 is unarguably one of the finest EQ plug-ins around. [...]. Outstanding! Verdict: 10/10!"
— Computer Music Magazine

## Key features

- Up to 24 bands with diverse filter types
- Dynamic EQ for every band
- Natural Phase and Linear Phase processing
- Real-time spectrum analyzer with collision detection
- Spectrum Grab for direct adjustment
- EQ Match for tonal characteristic transfer
- Per-band stereo, left, right, mid, or side mode

## Recent user reviews (10 of 25)

All indexed reviews: https://appshunter.io/ios/app/fabfilter-pro-q-3/id1469019469/reviews.md

### 5/5 — A Fantastic EQ with Great Resource Efficiency

*2024-11-25, version 3.24*

I can use this on every track because of its very clever programming to be very lightweight on the iPad’s resources. Fully featured, including dynamic EQ, side-chaining, multiple filter types and so much more. I say rubbish to the complaint about the accuracy of the on-screen scales. You EQ with your ears, not your eyes. I will use the on-screen scales to get me close when going after a known issue, but in the end you cut, boost, and filter with your ears. There’s a reason that engineers all over the world are raving about FabFilter’s EQs and the rest of their plugins. They’re all fantastic tools!!

### 4/5 — good, but exclusion of keybinds has made EQ-ing become fatiguing

*2024-03-21, version 3.24*

ive been using fabfilter proq3 for 5/4 months now and its been a good experience so far. only complaint i have is the exclusion if keybinds. i got an ipad keyboard accessory recently for doing longer session editing, and not having keybinds for shaping an eq point makes for a tedious and at some times an uncomfortable experience.

it makes sense why it isnt included as not everyone has a ipad keyboard. but if you're getting serious and planning to work more hours on a song, its needed.

ive been doing longer editing sessions, cleaning up some songs i made a few hours earlier, and having to press my finger down constantly on a mouse pad to shape a bell curve or manually changing the slope of a low cut / high cut has been hurting my finger a ton while also making it slower to EQ.

It's gotten to where im just avoiding the EQ, which i don't want to.. but it's hard to give it a try after it becomes so fatiguing. 

besides that, i've been enjoying proq3 so far! it's been good, but this exclusion of an important feature has made it difficult to EQ a track.

please implement keybinds as a toggle in a future update. thank you for your work :)

### 2/5 — Inaccurate

*2023-11-22, version 3.21*

It absolutely is inaccurate. When you do a long hold and the frequency peeks are displayed the numbers are off. Definitely not a PRO app. Fix it.

### 5/5 — The Best

*2023-03-22, version 3.21*

My favorite surgical+ EQ on any platform: MacOS, Windows, or iOS. It’s packed with features, but the beauty of the app is its perfect interface. It’s a joy to work in.

### 5/5 — game changer

*2022-12-20, version 3.21*

Pro Q helped me really grasp the concept of additive and subtractive EQ while it enabled me to perform those tasks more efficiently. The cross-track visualization component and surprisingly low DSP usage really puts the bow on the present and shuts the mouth of any fab filter naysayers. I was able to afford one FabFilter app and I was very happy I made that decision Pro Q when my mixes started immediately improving and sounding so much more professional. Looking forward to slowly collecting all of these desktop-level apps for my ipad.

### 5/5 — I can’t upload

*2022-06-12, version 3.21*

How to install in my Cubasis please help me

### 2/5 — Inaccurate!!!! 👎🏼

*2022-04-18, version 3.21*

I used a single pure tone to measure the accuracy of this EQ and it turned out to be off by 20Hz at least. I used a free app called NA tuner for A&B, the NA tuner gave correct reading. I emailed customer service ( Ralph ) just to hear that it works fine on their end, after several emails they requested video of my test and the sample I used, I sent them multiple times, after 3 weeks of emailing back and forth all I got is, we didn’t receive the sample even though the email thread includes multiple attachments of the same wav file. They are playing me and wasting my time just so they won’t admit that their Auv3 isn’t accurate. Last time I purchase anything from this developer.

### 3/5 — Dec 21 Update 👎🏽

*2021-12-24, version 3.20*

Just downloaded the update, now when I open the interface in Cubasis, I get a scratchy mess! Just resizing the window causes so much feedback, the track slows and eventually just seizes into oblivion. Thanks! 🙄

### 1/5 — Too powerful for my iPad Pro

*2021-08-22, version 3.18*

Great on its own, but maxes out my dsp in cubasis 3 on my iPad Pro if I try to use with any other insert. Am asking for a refund.

### 5/5 — Wow wow

*2020-12-06, version 3.16*

I started using my ipad for live gigs with an interface with aum , I was looking for a good equalizer for my iPad 6 generation shouldn’t take up much CPU process, also something to be able to work with midi   And guess what I don’t have nothing bad to say I think it just works great. I am also very happy with the compressor on every band in two words.! Just great. !Thanks

## Frequently asked questions about FabFilter Pro

### What is FabFilter Pro-Q 3?

FabFilter Pro-Q 3 is a professional audio plug-in that functions as a high-quality equalizer. It offers advanced features like dynamic EQ, linear phase processing, and an intuitive interface for precise sound shaping in music production and audio engineering.

### What are the key features of FabFilter Pro-Q 3?

Key features include up to 24 bands with various filter types, a dynamic EQ option for each band, Natural and Linear Phase processing modes, a real-time spectrum analyzer with collision detection, and Spectrum Grab for direct adjustment of frequency peaks. It also offers EQ Match functionality.

### How do I use FabFilter Pro-Q 3?

FabFilter Pro-Q 3 can be used as a plug-in within an AUv3-compatible host app such as Auria, AUM, or Cubasis. It will appear in the list of Audio Unit extensions for effect plug-ins within your chosen host application.

### Is FabFilter Pro-Q 3 compatible with all devices?

To use FabFilter Pro-Q 3 as a plug-in, you need an AUv3-compatible host app. The plug-in itself is designed for use within these professional audio applications on compatible devices.

### What is the cost of FabFilter Pro-Q 3?

FabFilter Pro-Q 3 is a paid application. It is a one-time purchase and does not involve subscriptions or in-app purchases for its core functionality.

## Version history (last 5 releases)

### 3.28 — 2026-03-23

Fixed a bug that could cause the spectrum analyzer to show peaks at slightly incorrect frequency values.

### 3.24 — 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.
- Fixed bug that could cause the pop-up menu to show when soloing a band.
- Minor fixes and improvements.

### 3.21 — 2022-02-25

Fixed a crash that would occur when double-tapping the Q readout to reset it in the EQ parameter value display, if the piano scale is visible.

### 3.20 — 2021-12-14

- The interface will now clearly show that it's in band solo mode when loading a session which was accidentally saved with Band Solo enabled.
- The interface now restores the previous zoom level when closing and reopening.
- The interface now remembers the previous manual threshold value for each band when you switch between auto and manual mode.
- Added Use Accessible Colors item to the Help menu, toggling to a brighter color for spectrum collisions.
- Small bug fixes and improvements.

### 3.18 — 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, and import presets from Pro-Q 2.
- Fixed incorrect text colors for editing in Dark Mode: this made it impossible to see the typed text.

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## More apps by FabFilter

- [FabFilter Pro-Q 2](https://appshunter.io/ios/app/fabfilter-pro-q-2/id1401182622)
- [FabFilter Pro-C 2](https://appshunter.io/ios/app/fabfilter-pro-c-2/id1468123337)
- [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

## Related topics

[Fabfilter](https://appshunter.io/ios/topics/fabfilter)

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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 2026-06-08.*