FabFilter Pro-Q 3 4+

High-quality equalizer plug-in


    • 4.7 • 32 Ratings
    • $29.99

iPad Screenshots


Compatible with AUv3 host apps such as GarageBand, Auria, AUM, Cubasis and n-Track 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

What’s New

Version 3.21

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.

Ratings and Reviews

4.7 out of 5
32 Ratings

32 Ratings

moeh1 ,

Wow wow

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

R3D2012 ,

Inaccurate!!!! 👎🏼

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.

HeartBeatz by Yahel ,

Simply thank you

I would like to thank the team at Fab Filter for affording us IPad producers, the opportunity to have these high quality music tools at our disposal. Very greatful! Was hoping for this! GOD bless you! I pretty much have every music plugin for iOS, but this is the first time I’ve felt compelled to stop and write a review in addition to giving stars.

App Privacy

The developer, FabFilter, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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