MonoBand uses an on-device AI model to separate any track into vocals, drums, bass, guitar, piano, and more — so you can solo a single instrument, loop the chorus, change tempo without changing pitch, and record yourself on top. No internet. No subscription.
AI stem splitter
MonoBand is an iOS, iPadOS, and macOS app that splits any song you own into 6 separate instrument tracks using Apple's Neural Engine — vocals, drums, bass, guitar, piano, and a catch-all "other" channel. From there it's a full studio: per-stem volume, solo/mute, ±24-semitone transpose without changing tempo, speed change without changing pitch, A→B practice loops, bookmarks for verses and choruses, auto-detected BPM and key, AirPlay and Lock Screen control, and the ability to record up to 4 of your own takes over the song. Everything runs locally — no servers, no account, no tracking.
Your songs, projects, and recordings sync across every device you own.
Built for musicians who want to learn songs note for note, producers who want stems for remixes, and anyone who just wants to sing over their favourite chorus.
Apple Neural Engine runs HT-Demucs on-device to split any song into vocals, drums, bass, guitar, piano, and other — in minutes.
Per-stem volume sliders, instant solo to isolate a single instrument, mute to drop the vocals and sing along.
Move the song into your key without changing the tempo. The vocalist sounds natural, the chords still fit your guitar.
Slow a tricky solo to half speed to learn it — or push the BPM up — without the chipmunk effect.
Drop A → B loops on the toughest section, or bookmark the verse, chorus, and solo to jump straight there.
Every imported song gets its tempo and musical key detected automatically — perfect for setting up a metronome or finding songs in a key.
Stream the mix to AirPlay speakers, AirPods, or your car. Play, pause, and skip from the Lock Screen or Control Center.
Sing, play, or layer harmonies on top of the song. Each take goes on its own track with its own volume slider.
Save individual stems as WAV, or bounce the full mix to a single WAV or MP3 — ready to share or drop into another DAW.
From "I want to learn this song" to a six-stem session in under a minute.
Bring in audio from Files, the Photos app (videos count too), or record a fresh take.
The Neural Engine separates the track into 6 instruments. No internet required.
Solo the bass to learn the line. Mute the vocals to sing. Loop the chorus. Slow the solo.
Save the stems, bounce a mix, or share to Messages, Voice Memos, or any DAW.
Every song you import, every stem the AI generates, and every recording you make stays on your device. MonoBand has no servers, no analytics, no third-party SDKs, no account. The AI model runs locally on Apple's Neural Engine.
Read our privacy policy →Free to download. No ads. No subscription. No account.
Requires iOS 18 / iPadOS 18 / macOS 15 or later. Universal app — purchase once, runs everywhere.
