CoSo by Splice

4.2
115 reviews
10K+
Downloads
Content rating
Everyone
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About this app

CoSo is the AI-assisted sound creation app that lets you follow your instincts and make music in the moment. Whether you’re making unique music for your social posts or getting inspo for your next hit, CoSo is the app to bring instinctive creation to your fingertips.

Stop digging—start creating
CoSo listens to your track in real-time, then serves up Complementary Sounds that go together. With the "does this sound good together" out of the process, you can focus on letting your creative instincts lead you.

Instinctual creativity
Create a Stack by choosing a style then add up to eight instrumental layers from across the Splice catalog—every selection is uniquely yours and destined to work.

Everything under your thumb
Swipe right to choose a new sound, swipe left to delete, tap a layer to mute it, and long-press to solo. CoSo’s here to create musical momentum.

Save. Send. Share.
Save you Stacks to your library, share with a friend, upload a video to your socials or export and download it as an Ableton Live session. You can also locate your sounds in the Splice library on splice.com or in our desktop app to use them in your DAW.
Updated on
Nov 1, 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
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
111 reviews
M G
April 24, 2022
In it's current form I believe it is a great tool for finding inspiration and building a base for something great. I like the UI and the layout of the samples in the stack. Very responsive as well. A few things I would like to see in the future as a producer would be; + Instead of titles like 'Beat', 'Chill' and so on on the type selection screen, let us choose from Genres as well, I feel sometimes when using the app I can't quite get the BPM I want or the drums because it seems to be based on one of the samples perhaps. The BPM will go to 120 sometimes and other times it won't. It takes longer to find that particular style, so to say. + I imagine an integration of the Desktop version of Splice and CoSo is in the works but, I thought I'd put it out there anyway. If I could pull the stack as it is in CoSo into Splice or my DAW that would be great. + The ability to put samples that we choose in the stack to build from. Often I will have a sample that I want to use but I can't find a complementary sound using "Similar Sounds". I am an avid user of Splice for desktop so I love this, I was just wondering about what to do when I had a creative block and this showed up. Thanks again!
6 people found this review helpful
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Joe Stallings
October 25, 2022
Fantastic app with a few quirks. The UI/UX experience is outstanding as is the AI that pulls in appropriate genre samples. When you open your compositions in the Splice desktop app, and see all of the pitch and tempo shifts going on to make everything 'fit,' you really appreciate the genius of this software. A couple issues I have run into - occasional distorted mixes, and also timing glitches / drop-outs when sharing recordings.
4 people found this review helpful
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Splice
November 2, 2022
Hi there! We're really happy to hear you're enjoying CoSo! We encourage you to report any issues you've experienced to our support team. You can find us here: support.splice.com
E M
July 20, 2022
I really wanted to leave a 5 considering it's one of the most innovative AI music apps on the market. I really enjoyed both the UI/UX functions because they were really user friendly. It is an amazing idea to really grab inspiration quickly and make music more efficiently. However, I wish there was a one click function where the COSO music "styles" could easily be downloaded onto a DAW the way the AI combined them in-app originally. Overall, pretty solid.
4 people found this review helpful
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What's new

New in CoSo: A few behind-the-scenes improvements to keep the creativity flowing