Caustic 3 is a music creation tool inspired by rack-mount synthesizers / samplers rigs. 
Everything is real-time and optimized for mobile devices.

Create your rack by adding up to 14 machines from a choice of:
Subsynth - Virtual analog subtractive synthesizer
PCMSynth - Multi-sample wave synthesizer 
BassLine - 303-like monosynth
BeatBox - 8-channel sampling drum machine
PadSynth - Harmonic table pad synthesizer
8BitSynth - 8bit equation solver synthesizer
Modular - Fully configurable and routable synthesizer
Organ - Hammond-like tonewheel organ with rotary speaker
Vocoder - 8-band harmonic vocoder
FMSynth - DX-style 3-operator fm synthesizer
KSSynth - Karplus-Strong string modeling synth

The app also includes:
* Effects rack supporting 2 effects per machine. (16 effect types)
* Mixer desk with global Delay/Reverb effects
* Master section with parametric EQ and limiter
* Song sequencer

Supports automation on most controls and includes powerful editors for modifying recorded automation curves.

All files are stored on the user-accessible storage, and users can supply their own WAV files for use in the PCMSynth, BeatBox, and Vocoder.
Supports all uncompressed WAV files (8-16-24-32bit, any sampling rate).
The PCMSynth can also load SoundFont files (.sf2) and FL Studio mobile instruments (.instr, .ZIP)
Class-compliant USB MIDI controllers can be connected via USB OTG cable on devices running at least Android 3.2 and supporting USB host mode.

See the in-app help section for tutorial videos and full online manual.


Minimum device specs are:
* 1GHz ARMv7 processor
* 800 x 480 resolution screen
* Headphones or external speakers

This is a demo version of Caustic. There is no time limit in demo mode but save/export are disabled. The app will automatically save your current song between sessions. Unlock the full version buy purchasing the "Caustic Unlock Key" (sold separate). The full version enables song saving as well as exporting to WAV, Ogg and MIDI.


Android - Google Play (direct APK link)

iOS - Apple App Store


Desktop versions. Free, full version, but no support. New is a MacOS version and a standalone (no registry access required) Windows application. 

Windows installer [26 Mb]

Windows stand-alone ZIP ​[27 Mb] (for use on public computers or when you can't install programs, can be run directly from a USB drive once unzipped)

MacOS disk image (OS/X 10.4 Intel required) [28 Mb]

Linux: The windows versions have been reported to work fine under WINE on various flavors of Linux. Note that you may need to install the "winetricks vcrun2008" libraries as Caustic depends on Visual Studio 2008 runtimes. Try this if you get errors at launch.