TB Equalizer vs AU3FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TB Equalizer
This professional audio plug-in offers advanced equalization with a dynamic workflow and warm, non-linear filters. It processes microphone input in real-time and integrates with AUv3-compatible host apps for music production.
- Mastering grade equalizer
- Integrated spectrum and dynamics analyzer
- Up to 16 filter sections
- Dynamic or static filter modes
- AI-powered equalization suggestions
- Oversampling and anti-aliasing
- Mid/side/left/right processing
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ToneBoosters Equalizer is a top-quality, professional, dynamic equalizer AUv3 plug-in with an unrivalled workflow, warm, non-linear filters 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 with 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 - Optimised for iPad and compatible with iPhone and iPod Touch - Efficient, low CPU usage What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.
AU3FX
A powerful 4-band parametric stereo equalizer AUv3 plugin for iOS. It offers detailed frequency control, real-time spectrum analysis, and customizable presets for subtle enhancements or aggressive sound shaping. Load it within compatible music apps to enhance your audio.
- 4-band parametric stereo equalizer
- High quality 32-bit DSP engine
- Interactive frequency response curve
- Real-time FFT spectrum analyzer
- Bundled presets and user preset saving
- Multiple instances and external control
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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.
Screenshots
Verdict
The clearest difference is price: AU3FX at $4.99 against TB Equalizer's $9.99. AU3FX also leads on review sentiment (100% vs 84%). TB Equalizer's advantage is ratings volume (66 vs 10). On rating, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
TB Equalizer costs $9.99 and AU3FX $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for TB Equalizer against 4.6 for AU3FX. That said, the two scores are not equally well evidenced: TB Equalizer has 66 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 84% of TB Equalizer's written reviews are positive against 100% of AU3FX's.
| Parameter | TB Equalizer | AU3FX |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 4.6 (66 ratings) | 4.6 (10 ratings) |
| Positive reviews | 83.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 66 — better | 10 |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | ToneBoosters | Kymatica AB |
Customer experience
TB Equalizer
AU3FX
Bugs and requests
TB Equalizer
Reported bugs
12 issues- Popup window for node selections cannot be disabled
- Plug-in not being read correctly
- Destroys mixed tracks
- App crashes LumaFusion as a plug-in
- Makes audio sound flat
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- Doesn't adjust any frequency
- Compatibility problem with Air Pod Pro
- Dynamic mode only works for taming frequency bands (compression), not boosting (expansion)
- LFO maximum frequency could be improved
- Instruments lose crystalline sound under 17Khz
- Only one channel side chain
- Need more bands for side chain
Requested features
14 requests- Disable popup window for node selections
- Larger UI for iPhones
- Fix plug-in reading issues
- Mouse compatibility
- Improve LFO maximum frequency
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- Add negative dynamic ratios
- Implement multi-band compressor
- Add a channel for ~5 bands side chain
- More documentation available
- Add brickwalls
- Fading spectrum on reverb app
- More Tonebooster AUs on iOS
- Dark mode option
- Advanced analytics dashboard
AU3FX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
TB Equalizer
No in-app purchases
AU3FX
No in-app purchases









