Best AU3FX alternatives: apps like AU3FX:PeakQ

10+ similar apps compared and reviewed

4.6 avg rating

0 free apps

Updated October 2026

Kymatica AB

AU3FX is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to AU3FX

#1

TB Enhancer by ToneBoosters

Enhancer and exciter plug-in

Editor's Choice

4.6(18 ratings)

$6.99

TB Enhancer screenshot 1

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This professional audio plugin enhances and excites sound, adding depth and sparkle for a studio-quality finish. It processes microphone input in real-time and can be used as an AUv3 plugin in compatible music production apps.

#2

TB Morphit by ToneBoosters

Headphones correction plug-in

Strong Contender

4.6(33 ratings)

$8.99

TB Morphit screenshot 1

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TB Morphit screenshot 3

This app corrects and simulates headphones, removing unwanted coloration for accurate monitoring and mixing. It offers studio-reference equalization and works as an AUv3 plugin with compatible host apps.

#3

TB Compressor by ToneBoosters

Professional dynamics plug-in

Worth Considering

4.8(24 ratings)

$8.99

TB Compressor screenshot 1

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This professional audio plugin offers mastering-grade compression and dynamics processing for iOS devices. It features advanced controls like soft knee, parallel, upward/downward, and band-limited compression, with real-time visual feedback and an interactive interface.

More apps like AU3FX

Step Arpeggiator/Sequencer

This app functions as a real-time polyphonic and polyrhythmic MIDI step arpeggiator and sequencer. It can generate melodic patterns from input or operate as a standalone sequencer. Save and sync unlimited presets with iCloud, featuring extensive customization for patterns and step controllers.

Standalone app and AUv3 MIDI effect pluginArpeggiator and step sequencer modesProgrammable step matrix with transposition lines

Compare with AU3FX

Professional equalizer plug-in

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 equalizerIntegrated spectrum and dynamics analyzerUp to 16 filter sections

Compare with AU3FX

Analyser & Tuner AUv3 Plugin

Analyser & Tuner AUv3 Plugin

Analyser & Tuner AUv3 Plugin

AUv3 Compatible Plugin

This audio plugin provides real-time frequency spectrum analysis and a digital tuner for music production. It helps identify and eliminate noise, flatten mixes, and detect notes with precise frequency and deviation.

Real-time frequency spectrum analysisDigital tuner with note detectionMultiple display modes (linear, logarithmic, octave)

Compare with AU3FX

Filter effect for AUv3

This app offers a versatile dual filter effect for music production, inspired by classic hardware. It features twelve filter algorithms, an envelope follower, and multiple operating modes for creative sound shaping. Its user-friendly interface and resizable GUI make it a powerful tool for producers.

Twelve filter algorithmsEnvelope follower with sidechainVCA mode for tremolo/gate

Compare with AU3FX

Real-time audio looper

This real-time audio looper plugin offers a unique and characterful toolkit for producers and live performers. It combines intuitive design with deep features for creating layered grooves, complex textures, and evolving soundscapes. Advanced controls allow for independent speed and direction manipulation, tape-style effects, and MIDI integration.

Real-time audio loopingOverdub modes (conventional and dual tape)Up to four definable Sectors

Compare with AU3FX

sEGments by Elliott Garage

sEGments by Elliott Garage

sEGments by Elliott Garage

Slicer & Sampler instruments

This app allows you to import audio files and slice them into individual samples. You can then play these slices using MIDI controllers or on-screen pads, with independent control over each slice's parameters and effects. It also automatically detects BPM and key, and can be used standalone or as an AudioUnit within other music apps.

Automatic and manual audio slicingMIDI controller and on-screen pad/keyboard playbackIndependent slice parameters and effects

free with in-app purchases

Compare with AU3FX

BLEASS Multiband Compressor

BLEASS Multiband Compressor

BLEASS Multiband Compressor

Deep Dynamics Detail

This audio processing tool offers precise control over music dynamics by separating audio into three frequency bands. It features a dual-stage processor for compression or expansion in each band, along with a flexible sidechain system for creative effects and corrective work. Achieve professional loudness and punch in your mixes.

Multiband processing (3 bands)Dual-stage dynamics processor per bandCompressor and expander modes

Compare with AU3FX