4.1
327 reviews
10K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Realtime emulation of a Roland TB303 synthesizer, TR808 and TR909 drum machines.
Draw in notes, adjust the sound parameters with knobs, auto create random patterns.

(Check out the app "Acid 2" for TWO TB303 synths! It's a work in progress,
https://play.google.com/store/apps/details?id=com.acid2 )

The export button will try and save the song's WAV file and FLAC file to the external sdcard(can't in Android 10?), and then upload the FLAC file to the Interplanetary Filesystem (IPFS), for sharing with friends.

Conversion of the song to flac and uploading can take many minutes, you'll only know when it's done when a web browser pops up with a link to your song you can share. Leave the app open and be patient! IPFS is not a permanent storage solution, so your song will vanish when it becomes unpopular, download any audio you want to keep from the link before it's gone.

The In/Out buttons will save the 'source code' of the song, so you can cut/paste/share it as text.

Contribute to the development:
http://github.com/raver1975/Acid

Watch out for earburns!


*** I think this works on Android 10 and 11! Thank you for the patience as I work out the bugs, ***
Updated on
Dec 24, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.1
285 reviews
A Google user
December 26, 2019
Stunning app with great capability. The only downside is the interface. Multi touch zoom is a huge issue on my Note 8. I cannot turn knobs because the app wants to zoom in and out. It starts very tiny. If you over zoom you get stuck and have to close the app and start over. Would also be very cool to have a portrait mode. Layout is good, buttons, nobs and options are easy to find. Sound is excellent. Random mode allows nearly unlimited potential. Really like it.
7 people found this review helpful
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Joe Farrell
August 27, 2021
Yes it's still there. Thanks for responding, I even have a different phone, the newest Moto G, and there's still a problem saving after a few saves that go through. So it's useable, but EVERYTIME it eventually crashes. If you fixed the bug and added a few more features, this could be an awesome premium app that I would pay for. Have made alot of bangers with this neat thing. Improve just a little and add some frills and you have one of the best music apps on Android
4 people found this review helpful
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Paul Klemstine
June 9, 2021
I know there's a bug on certain phones, but I can't seem to reproduce it. I updated the app with the latest dependencies, hopefully that helps fix the bug. Let me know if it's still there.
A Google user
March 2, 2020
Great sounding app. Sadly let down by the awful interface that is very hit and miss when you need to change the size and position. EDIT - thanks for your reply, Paul. I'd jump at the chance to help if I were a developer but alas I'm not.
2 people found this review helpful
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Paul Klemstine
February 15, 2020
I appreciate the feedback. Work on this app is hit and miss for me, I lost steam at the end. I wish some developers would join the project and help make it better. I'll take a look at making an update soon, sorry the UI sucks.

What’s new

Fixed export bug, WAV and FLAC audio files are saved to the music folder of your phone's SDCARD, hopefully.