ToneBoosters Equalizer is a top-quality, professional, dynamic equalizer plug-in with an unrivalled workflow and a gorgeous, functional user interface.

The ToneBoosters Equalizer app captures the microphone (or external sound card) input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Equalizer will appear in the list of Audio Unit extensions for effect plug-ins.

Key features:

- Mastering grade, professional equalizer
- Integrated spectrum analyser
- The same professional sound as the acclaimed desktop version
- Up to 16 filter sections with a very wide range of filter types
- Run each section in dynamic or static mode
- Run each section with digital purity or analog character and non-linearities
- Oversampling and anti-aliasing modes to further improve sound quality
- Use Artificial Intelligence (AI) for content-dependent equalisation suggestions
- Audition mode to easily identify problematic frequency areas
- Automatic level make up function for every section
- Zero latency mode for live operation
- Lasso function to select and move multiple filters simultaneously
- Piano display to select musical note frequencies
- Output VU meters showing peak and RMS levels simultaneously
- Undo/redo, and A/B comparison
- Color themes for the user interface
- Adjustable colours for every filter section
- Mid, side, left, right processing for stereo input for each section
- Max screen support in Garageband
- Legacy Inter-App Audio (IAA) support
- Optimised for iPad and compatible with iPhone and iPod Touch
- Efficient, low CPU usage

What you should know:
- Inter-App Audio (IAA) can only use one instance of this app simultaneously. We recommend to use an AUv3 host to use multiple instances.
- Inter-App Audio (IAA) will only work with a single (mono) channel without an external (stereo) input source. The AUv3 version will support up to 16 channels.
- Licenses acquired for this platform (iOS, iPadOS) are not compatible with other platforms.

How to use this app as AUv3 plug-in in Apple Garageband for iOS:

How to use this app as AUv3 plug-in in Steinberg Cubasis for iOS:

How to use this app as AUv3 plug-in in Audio Evolution Mobile Studio for iOS:

What’s New

Version 1.0.5

Improved responsiveness and layout across devices and hosts.

Ratings and Reviews

5.0 out of 5
9 Ratings

9 Ratings

TBMisamazing ,


The AI Assist alone is worth the price this costs. This EQ can do everything the Pro-Q can, and then some, at a fraction of the cost. In my own opinion, this is actually better. Here’s the biggest reason why I think that besides the two things I just said: the window containing fine adjustments for frequency, Q, gain,etc. doesn’t only show up in full screen AU mode in Cubasis. You can simply tap on the effect and have access to the window in the half screen display of the effect. However, in order to see the same window in Pro-Q, you have to put it in full screen. This may not seem like a big deal, but it means you don’t have to constantly enter and exit full screen for fine adjustments while mixing. Bottom line, if you want a pro quality EQ on par with Fab Filter, this is an absolute no-brainer.

Developer Response ,

Thanks for your feedback; much appreciated!

Mehmui ,

Great eq on ios or anywhere

Is it possible to auto apply the ai curve, i cant figure it out nor find the manual. Could there also be a bypass in app?

Developer Response ,

Thanks for your rating! The AI curve is a suggestion. It won't touch the audio itself. We want you (the user) to be in full control at all times. You can use the AI-suggested curve to create your own version of it.

b.eats.z ,

The only EQ you need!

This is it! If you can’t do it with this, then you can’t do it! We need more tonebooster AUs on iOS. This is TOP NOTCH quality!

Developer Response ,

Thanks for the great feedback!


Dirk Breebaart
6.4 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.

Age Rating
Rated 4+
© 2019


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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