AU3FX:Push 4+

AUv3 stereo dynamics processor

Kymatica AB

    • 5.0 • 8 Ratings
    • $6.99



A highly tweakable stereo dynamics processor with noise gate, compressor/expander with external side-chain input, and limiter/clipper. From subtle compression, extreme pumping, to maximum loudness!

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

• High quality 32-bit DSP engine.
• Compressor/expander with optional lookahead buffer.
• Allows negative ratios for pumping/cancellation effects.
• Hard or soft knee with adjustable radius.
• Built-in side-chain low/high cut filters with monitor toggle.
• External side-chain input.
• Built-in noise gate.
• Brick-wall lookahead limiter.
• Hard/soft clipper.
• Supports "parallell compression".
• RMS/Peak envelope followers with attack, release and hold time.
• Switchable between Linear and Logarithmic mode.
• Automatic makeup gain.
• Stereo link on/off.
• 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).

What’s New

Version 1.1

- Allow setting threshold and ratio by dragging on the gain curve plot.
- Fix user preset save/load. (Please delete any user presets you tried to save in the previous version, they won't work)
- Fix loading of limiter duration from factory presets.
- Minor UI tweaks.

Ratings and Reviews

5.0 out of 5
8 Ratings

8 Ratings

anickt ,

It’s a winner!

Like all Kymatica apps, this has a look, feel and sound that makes it one of my first call fx. So glad to see these apps as AUv3. If you don’t have all of the Kymatica apps in your toolbox you’re missing out on essential iOS music apps.

Fonzyguy ,

Excellent app from excellent developer

Just give him your money. AUM and all of the Au3fx apps are essential for music producers.

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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