Last modified
Wednesday, October 4, 2017

Description of App

A versatile 4-band parametric stereo equalizer for everything between subtle frequency enhancements and agressive boosting/cutting or special resonator effects. This app is part of the AUFX series, a collection of simple and powerful audio effect apps. • 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. • Displays the resulting frequency response graph in real-time. • Real-time FFT spectrum analyzer with pre/post/off switch. • Process hardware input/output. • Process other apps through Inter-App Audio or Audiobus (input/filter/output slots supported). • Save, load and share user presets. • Supports Audiobus 2 state saving. • Comes with several bundled presets. • Fully MIDI controllable, including Virtual MIDI. • Background Audio. • Built-in lookahead limiter to prevent clipping. • Record the result directly in app. • Email recordings or export to AudioShare audio document manager app. • Access user presets and recordings through iTunes File Sharing.



Free or Paid


Apple Watch Support

Not Known

Device(s) App Was Tested On

iPod Touch

Accessibility Comments

Unless I missed something, this app is 100% accessible. I've been a part of the early beta testing for the new version and made sure that every control was attended to.

VoiceOver Performance

VoiceOver reads all page elements.

Button Labeling

All buttons are clearly labeled.


The app is fully accessible with VoiceOver and is easy to navigate and use.

Other Comments

Only a couple of months ago this app was completely inaccessible. After my conversation with the developer and a couple of suggestions on how to make it VoiceOver-compatible, he went off on his own and implemented all the accessibility features. I am very excited about the AUFX series being accessible because these are effects are not only of a really high quality, but also are very configurable, not to mention great presets bundled with the app. Hope you will enjoy them too!

Developer's Twitter Username



1 people have recommended this app

Most recently recommended by Victor Tsaran 7 years 9 months ago



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