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 and dynamics 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.
- 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 1.4.2

- New upward expansion mode for dynamic EQ - make your kick and snares pop out like never before!
- spectrum analyzer and input VU levels are now showing effect of input gain
- Zoom control can now zoom in much more
- New zoom preset buttons
- New control panel in stand-alone mode to select sampling rate, frame size (latency)
- Various stability and efficiency improvements

Ratings and Reviews

4.9 out of 5
35 Ratings

35 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!

Joe Salyers ,

Toneboosters are Top Notch

Toneboosters has been one of the best audio plugin companies since the very early days of audio plugins, the company can trace it’s history almost as long as Waves. You will NEVER regret or have buyer’s remorse when purchasing Toneboosters, you always come away very satisfied! Great prices and extraordinary quality in sound. I hoped to see the whole collection make it’s way to the ARM/Apple platform because these really are one of the industry standards of the last 20 years. I would like to see a bundle deal once the complete collection is ported to iPadOS/iOS!!

Developer Response ,

Thanks for your feedback! :-)

LNS-Chris ,

Pro Level EQ!

This is a great EQ! Sounds good, very easy to get into, and full of every thing you can think of that an EQ might do and then some. It actually has more options than some other more expensive EQ’s. I am really surprised that there is not more talk about this one and the other TB apps. Great work!

Developer Response ,

Thanks for your response!

App Privacy

The developer, ToneBoosters, 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

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

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