Grainstorm

Name: Grainstorm
Rating: 4.51 (1144 reviews)
Author: The Secret Laboratory

By: The Secret Laboratory

Sampler / Looper/ Synthesizer based on Granular Synthesis

Features & Capabilities

Grainstorm is a powerful Chrome extension designed for musicians and sound designers who want to explore granular synthesis. It functions as a sampler, looper, and synthesizer, providing a dynamic toolset for experimental music creation.

Key features include a fast and lightweight interface, four tracks for versatile layering, stereo mode for enhanced audio richness, and support for sound files up to seven minutes in any audio format. Users can enhance their sound with effects like Convolution Reverb, Channel Vocoder, and Phase Vocoder. The extension starts with its audio engine turned off to save battery and offers straightforward controls: power on, eject/load sound files, and play. A free version acts as a demo, with in-app purchases unlocking recording capabilities and additional features. Check out the manual for detailed instructions.

User Growth & Download Statistics

App Music & Audio Entertainment

By:

The Secret Laboratory

Downloads:

236,834 101

Rating:

4.51

(1,144) 1 new ratings

Version:

1.9.5 Last updated: 2026-05-26

Version code:

564

Creation date:

2013-10-30

Publisher country:

Permissions:

android.permission.FOREGROUND_SERVICE_MICROPHONE Very high risk
android.permission.RECORD_AUDIO Very high risk
android.permission.FOREGROUND_SERVICE_SPECIAL_USE Moderate risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.MODIFY_AUDIO_SETTINGS Low risk
android.permission.POST_NOTIFICATIONS Low risk
com.android.vending.BILLING Low risk
android.permission.ACCESS_NETWORK_STATE Safe
com.android.vending.CHECK_LICENSE Safe

Size:

13.11MB

Email:

ts*****@rocks.me

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-07-04

Compare stats and ranking:

Ranking

# 142,562 ▼ 196

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

The Secret Laboratory

Google Play Store

https://play.google.com/store/apps/details?id=me.rocks.grainstorm

Email:

ts*****@rocks.me

Website:

https://rocks.me/apps/grainstorm

Publisher Change History

2025-05-29: gr*****@rocks.me to ts*****@rocks.me

Upgrade to see full email

User Reviews

Users praise Grainstorm for its deep, powerful granular synthesis and creative potential, while repeatedly citing stability, learning curve, battery drain, and missing save/export features as the main drawbacks. Despite flaws, many find it essential and value its updates and price, with active development and strong inspirational use.

Pros

Powerful, deep granular synthesis and broad sound-design capabilities on mobile.
Extremely inspiring and creatively rewarding for daily practice and exploration.
Active development with frequent updates, bug fixes, and ongoing support.
Excellent value; the full version is worth the price.
MIDI control over loop playback enables experimental sampling and advanced workflows.

Cons

Stability issues across devices: crashes, freezes, and unreliable loading.
Steep learning curve with limited built-in tutorials or help.
High battery drain even when not actively used.
Missing core workflow features like save/export (and related workflow gaps).

Recent reviews

used this for years one of the best apps available especially would like it if I could figure out how get 2 of them pulled up in seperate freeform apps but I ain't worried about it right now Its also good to use in like split screen mode. great for looping and reprocessing it over and over changing tempo manipulating field recordings in a sort of wave sampler changer choose sine sqr pulse or whatever else also could be used for overdubs or bringing in tracks on top of tracks noises after noises

Ja*****, 2026-06-07

Good fun.

Le*****, 2026-05-26

HI 👋 ..HOW THE HECK DO YOU SAVE YOUR WORK ON THIS APP ? IS THERE ANY WAY TO EXPORT YOUR CHANGES AFTER YOUR DONE. I DON'T SEE ANY BUTTON LISTED TO SAVE MY WORK...ITS CONFUSING 😕 BECAUSE IF I CAN'T SAVE IT OR EXPORT IT THEN HOW IS IT USEFUL?