Apps Like MONSTR for iPhone and iPad
Adjust stereo width and mix balance
Adjust stereo width with up to six bands. Correct mix imbalances or apply creative effects. Works as a VST3 and AudioUnit plugin. Available for free on Windows, macOS, and Linux. Open source under GPL license.
Ranked alternatives
Showing 381–400 of 1,000 ranked alternatives.



BLEASS Monolit
BLEASS
Create basses, leads, and SFX
Create and play original sounds using a mono-synth with analogue sound quality and intuitive controls. Design basses, leads, arpeggios, and sound effects. Export and share presets. Sync with desktop, iPhone, or iPad.

Shoom Synthesizer
Yuri Turov
Play, edit, and share sounds
Create and manipulate sound with three independent synthesizers. Adjust pitch from 8–20,000 Hz. Slide or snap notes to scales with customizable glide rates. Set and edit individual notes for precise musical control.



StepPolyArp
Laurent Colson
Generate melodic patterns from MIDI input
Create and save unlimited presets with 16 patterns each. Adjust polyphonic and polyrhythmic sequences. Sync presets to iCloud. Use as a standalone or AUv3 MIDI effect. Generate melodic patterns from played notes or chords.


AUFX:Push
Kymatica AB
Process audio with precision and control
A stereo dynamics processor with noise gate, compressor/expander, and limiter/clipper. Features adjustable ratios, hard or soft knee, lookahead buffer, and side-chain input. Supports 32-bit DSP for high-quality processing.


Howl: A formant synthesizer
Daniel Clelland
Create and share vocal sounds
Create vocal effects using a vocoder with four parallel bandpass filters. Generate synthesized sounds with a simple sawtooth wave. Adjust pitch via a customizable keyboard. Apply effects like bitcrush, reverb, and vibrato.


Physicles
Rodrigo Roman
Create and play physics-based sounds
Create and manipulate MIDI sequences using physics-based plugins. Adjust parameters to control sound generation. Export MIDI files and integrate with compatible DAWs and hosts.

MIDI Tape Recorder
Uwyn, LLC
Record with precision and accuracy
Record and playback messages with precise timing accuracy. Edit recorded sequences, adjust velocities, and control playback speed. Sync with DAWs for seamless integration and real-time performance monitoring.

SonARC for Sonance UA Series
Dana Innovations
Configure amplifiers and manage DSP settings
Connect to UA 2-125 and UA 2-125 ARC amplifiers via wireless. Configure output settings for stereo pairs or Patio . Access a library of DSP presets for speaker and subwoofer setups. Adjust audio settings for local zone TV audio.



DrumKick
Mark Jeschke
Play drums anywhere with foot control.
The app provides a stereo drum kit for live performances. Users can play the kick drum with their foot using a second iOS device and standard Bluetooth.

VAPolyMkII
Ryo Togawa
Stream audio and control effects
A synthesizer with 16 voice polyphonic capabilities. Users can create sounds using two oscillators per voice, adjust ADSR envelopes, apply filters, and control amplification. Includes effects, a sequencer, and audio visualization.

Zero Chorus
Blamsoft, Inc.
Add and flange effects
Apply and flange effects to audio tracks. Adjust parameters like delay, feedback, and mix. Integrate with AUv3 host apps. Expand controls for easier tweaking. Enhance sound with a high-quality algorithm.
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