Moises

Moises earns its place by being one app instead of five. The separation step is the hook, but the surrounding tools are what keep you inside it: chord and key detection so you know what you're playing, a speed changer that slows a passage without detuning it, lyric transcription with an editor, section navigation for jumping to a chorus, capo mode when you want simplified chord shapes, and setlist organization when the practice turns into a gig. The breadth is unusual. Where single-purpose separators stop at vocals-and-instrumental splits, Moises claims up to 27 stem types spanning vocals, guitar, bass, drums, piano, keys, winds, and strings. Beyond separation it goes into creation: AI Studio generates new stems from your audio, Voice Studio builds vocal parts modeled on real singers, and the video recorder captures a performance with studio-quality audio for posting. Moises Studio then adds a browser session where bandmates and co-writers arrange, record, and edit the same project in real time, which removes the file-handoff dance entirely. Platform coverage is a genuine strength rather than a checkbox: web, desktop, iPhone, iPad, and Android, so the same session follows you. On the trust side, the vendor states plainly that it will never train on your data and trains only on licensed material — a meaningful answer for anyone uploading unreleased work. Where it doesn't fit: professional mastering engineers who need DAW-level precision and control, and anyone working on dense, heavily compressed mixes where separation artifacts still surface. The free tier gives a limited number of uploads per month with a subset of features, so heavy users will end up on a paid plan. And if your only need is pulling vocals off a track a few times a year, free web tools handle that without a subscription.