AU3FX:PeakQ 4+

AUv3 equalizer

Kymatica AB

    • 5.0 • 6 Ratings
    • $4.99



A versatile 4-band parametric stereo equalizer AUv3 plugin for everything between subtle frequency enhancements to agressive boosting/cutting or special resonator effects.

This app is part of the AU3FX series, a collection of simple and powerful audio unit effect plugins.

• High quality 32-bit DSP engine.
• Two parametric peak filters with gain, frequency and Q.
• Low-shelf filter with gain and frequency.
• High-shelf filter with gain and frequency.
• On/Off toggle for each band.
• Interactive frequency response curve with draggable handles.
• Real-time FFT spectrum analyzer with pre/post/off switch.
• Comes with several bundled presets.
• Use multiple instances at the same time.
• Save/load session state in host.
• External access and control of all parameters from host.
• User presets shared across hosts (on iOS 13 and later).

The container app shows the Users Guide. Load the AU3FX:PeakQ inside any music app that supports hosting Audio Unit Extensions to use the plugin.

Ratings and Reviews

5.0 out of 5
6 Ratings

6 Ratings

JRSIV1975 ,

Kymatica is a pillar of the iOS music production format, another gem!

I started using iOS music production apps for my home recordings in 2015. Jonatan’s apps were already must haves (Audio Share, the original IAA AUFX effects, etc). These classics being reintroduced with AUV3 functionality is a must buy for any musician or producer working with iPad music apps. Thank you Jonathan!

anickt ,


Now the whole set of Kymatica audio processors is AUV3. Kymatica apps are indispensable for iOS music making.

App Privacy

The developer, Kymatica AB, 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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