OffgridStem Now Separates 6 Stems Instead of 4

OffgridStem's latest update just passed App Store review, and it changes what the app can actually do: separation has gone from 4 stems to 6. Piano and guitar now come out as their own stems, instead of getting bundled into a general "other instruments" track.

What's new

OffgridStem now separates a track into: vocals, drums, bass, piano, guitar, and other instruments — six stems from a single pass, still entirely on-device. If you've been isolating piano or guitar parts by ear, or fighting with a generic "instrumental" stem that has both blended together, this update is for you.

Same on-device architecture

Nothing about how the app handles your audio has changed — separation still happens entirely on your iPhone, with no upload, no account, and no subscription. The update is purely about what the model can isolate, not how it processes your data.

More from Offgrid Studio

If you want to see the new stems in action, our guide to extracting an instrumental covers the workflow. And if you're after vocals only, the OffgridStem page has the full rundown.