Grainstorm

The Secret Laboratory

In-app purchases

About this app

Use as/for:
• Tool for Sound Design
• Experimental Musical Instrument
• Fun

Key Features:
• Fast and lightweight
• Four tracks
• Stereo Mode
• Loads sound files of up to seven minutes length in any audio format
• Effects like Convolution Reverb, Channel Vocoder, Phase Vocoder

First use instructions:
1. Press POWER. Upper right power button turns on audio engine which is TURNED OFF on startup to save battery.
2. Press EJECT. Load a sound file.
3. Press PLAY.

A manual can be found here: https://grainstorm.rocks.me

There is an In-App-Purchase which among other things lets you record the output. Please consider the free version as a demo version.

Ratings and reviews

This app is essential for any ambient/noise musician. I've been using the pro version for over 1 year and it has allowed me to make some serious tracks while travelling/not in the studio. It can turn anything into an endlessly evolving ethereal dream or your worst nightmare. EDIT: The new update has heavily limited the types of audio files you can import, putting a wrench in the workflow/capabilities. I reached out to them about and am awaiting response.

Fascinating and weird and capable of amazing sounds. Runs very nicely on my Pixel 9a.

Love this. Bought the upgrade and don't regret it. The interface is a little challenging until you get to know it and the help is more technical than helpful but considering how much is packed into the app, that's understandable. Definitely worth reading the instructions. Some kind of 'getting started' tutorial would be a big help to newcomers.

What’s new

Bugfixes