Moises is a different class of tool: AI stem separation, chord detection with generated synced tabs, markers, tempo control, and it runs on nearly everything. It is also a cloud subscription — account required, songs uploaded, free tier limited to about ±10 BPM. JamCrate is the local counterweight: free, no account, nothing uploaded, works with no network. It does not separate stems, and for that job Moises wins outright.
What Moises is good at
Moises is in a different weight class and it is worth being clear about that. Its core feature is AI stem separation — up to 27 stem types on the paid tiers, with vocals, drums, bass and others on the free one — and on top of that it does chord detection with synced guitar tabs, markers for chords and arrangement, tempo changing, and looping. It runs almost everywhere: web, macOS, Windows, iOS, Android, Apple TV, Android TV, and as a VST plugin. Google Play lists more than 50 million downloads.
If you want to pull a guitar part out of a mix, nothing on this page does what Moises does. JamCrate does not separate stems, and it is not trying to.
Where it stops fitting
Moises is a cloud service: you need an account, your songs are uploaded and processed on their servers, and it is a subscription — Free, Premium and Pro, monthly or yearly. The free tier limits tempo changes to about ±10 BPM, and stem separation is metered by plan. The vendor states uploads are not used to train models, which is a reasonable answer, but the files still leave your machine.
The vendor's own pricing table sits behind a login, so this page does not quote Moises prices — we could not verify them from a primary source, and a comparison page that invents numbers is worse than one that admits the gap.
There is also a practical point: for a folder of backing tracks you already own, uploading each one to a service to play it back is a lot of ceremony for something a local player does instantly.
What JamCrate does instead
- Nothing leaves your Mac. There is no account, no upload, no processing queue and no per-song limit — the app reads your files where they are.
- It works with no network at all — on a plane, in a rehearsal room with no Wi-Fi, on a laptop with the radio off.
- Free with no tiers: every feature from the first launch, nothing metered, nothing to renew.
- Your library is a folder you own and can back up, move to a USB stick or read without the app.
What JamCrate does not do: no stem separation, no chord detection, no synced generated tabs, and a tempo range of only 0.5×–1.0×. For working out a part from a dense mix, Moises is the right tool and JamCrate is not.
Side by side
| Moises | JamCrate | |
|---|---|---|
| Model | subscription: Free, Premium and Pro, monthly or yearly | free beta, no tiers |
| Where it runs | web, macOS, Windows, iOS, Android, TV, VST plugin | macOS 14+, phone via browser |
| AI stem separation | yes — the core feature, up to 27 stem types | no |
| Chord detection / tabs | yes, with synced generated tabs | no — shows the tab you supply |
| Tempo change | yes; the free tier is limited to about ±10 BPM | 0.5×–1.0×, unlimited, pitch preserved |
| Account required | yes — songs are uploaded and processed in the cloud | no — nothing is uploaded |
| Works offline | account and cloud required for the core features | yes, fully |
| Price | not quoted here — the vendor's pricing table requires a login | free |
Facts about the other tools come from their own sites: Where you can use Moises · stem separation · speed changer
Which should you pick?
Pick Moises if you need stems — if you want the guitar out of the mix, or the vocals muted, or a part isolated to learn from. Nothing here replaces that, and the breadth of platforms is real.
Pick JamCrate if your songs are already separated, or you do not need them to be: a local, free, offline library with tabs, markers, matched loudness and a phone player, where nothing is uploaded and nothing is metered.
Questions
Can JamCrate separate a track into stems?
No. There is no stem separation of any kind in JamCrate. If you need the guitar isolated from a mix, Moises — or another separation service — is the tool for that.
Do I need an account to use JamCrate?
No. There is no sign-up, no login and no cloud. The app reads and writes files in a folder you choose, and the optional phone player streams from your Mac over your own Wi-Fi rather than through a server.
How much does Moises cost?
This page does not say, deliberately: the vendor's pricing table requires a login, so the figures could not be verified from a primary source. Check the vendor's own site for current prices rather than trusting a comparison table.
Try it on a track you already own
JamCrate is a free beta for macOS 14+. Import a folder, mark the hard bars, take the tempo down to 0.5× and keep the key.
Download for Mac Try the player in your browser
About 20 MB · Universal build · signed and notarized by Apple · no account, nothing leaves your Mac.
Prefer Homebrew? brew install --cask vitas/jamcrate/jamcrate