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 141–160 of 1,000 ranked alternatives.



Kalimba Keys
OSC Audio LLC
Play sounds and explore
Play sounds with studio-quality tones. Use round robin and per-key sampling for authentic playback. Apply effects like delay, reverb, and modulation. Adjust settings for custom sound shaping. Save and share compositions directly.

Perforator
Bram Bos
Create rhythmic patterns from audio
Create rhythmic patterns from sustained sounds using slice envelopes. Adjust gating mechanisms for staccato or pumping effects. Generate rhythmic gating by cutting and filtering audio. Sync with AUv3 compatible hosts for real-time processing.

Devialet
Devialet SAS
Control your audio system remotely
Control audio output across speakers with volume adjustment and source selection. Manage playback settings, pair devices, and access a music library. Sync with Apple Health for workout tracking. Adjust equalizer settings and schedule playback.

apeDelay
Alessandro Petrolati
Edit audio with spectral delay effects
Edit audio with spectral delay effects using up to 2048 delay lines and brick-wall filters. Manipulate frequency domain data through short time Fourier transform analysis. Adjust time and feedback shapes for stereo channels via multi-sliders.


Mela – AUv3: Synth, FX, MIDI
Nikolozi Meladze
Build custom synths and audio effects
Create custom polyphonic synthesizers and audio effects using modular components. Arrange modules on lanes to process audio signals. Build complex processors. Run as a standalone or AUv3 plug-in in DAWs like Logic Pro and Cubasis.




Nine Gates Diabolic Distortion
Nembrini Audio S.r.l.
Tweak EQ and adjust gain settings
Adjust audio with dual gain stages and interactive 3-band EQ. Apply advanced DSP edge filtering for precise tone shaping. Use as standalone , AudioUnit v3 effect, or Inter- Audio effect.


MangledVerb
Eventide Inc.
Transform vocals and instruments with reverb
Create immersive soundscapes by adjusting Size and Overdrive for rich reverb and distortion. Morph between soft-clipping and hard-ripping overdrive. Use Wobble for eerie effects and Ribbon for precise control.

Real Tanpura
Haathi Software LLC
Natural tanpura recordings in stereo.
The app provides high-fidelity, full-stereo recordings of a real acoustic Tanpura. It offers natural overtones and resonance, making it a preferred choice over synthetic alternatives for students, teachers, and performers.


Stereo Mic Position Calculator
Joe Voelker
Calculate stereo microphone recording angles.
The app calculates stereo microphone setups for recording. Users input ensemble width and microphone distance to see a true-to-scale diagram of the setup.
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