iOS, Android, and Mac

Unmix apps: full 5-stem separation

The browser gives you a free 2-stem test. The apps go further with full 5-stem separation (vocals, drums, bass, piano, other) on iOS, Android, and Mac. Everything processes on your device, no internet needed.

Try In Browser Free

5-stem separation
iOS + Android + Mac
works offline
process on device

Drop a song here — or tap to try it on your track

Free, in your browser. No signup. MP3, WAV, FLAC, M4A, OGG, or video.

Choose a file

Want 5-stem (drums, bass, piano)? iOS App Android App

Browser vs apps

The free browser tool and the paid apps serve different needs.

Browser: free 2-stem test

Vocals + accompaniment. Fast, free, no signup. Good for testing whether a track separates well before committing to anything.

Apps: full 5-stem separation

Vocals, drums, bass, piano, and other as individual stems. More control for production, practice, and detailed work.

Same AI, more depth

The apps use the same separation model but go further with individual instrument stems instead of a single accompaniment mix.

Available platforms

iOS (iPhone and iPad)

Full 5-stem separation on the go. Available on the App Store. Works offline — processing happens entirely on your device.

Android

Same 5-stem separation on Android devices. Available on Google Play. No internet connection required after download.

Mac (Apple Silicon and Intel)

Desktop power for longer tracks and larger files. Runs natively on Apple Silicon for fast processing. Available on the Mac App Store.

Unmix: Stem Separation with AI

4.5 · 1.1KRatings on Apple AppStore

Unmix is a perfect tool that lets you split any song into instrumental tracks and vocals with help of artificial intelligence. After that, you will be able to export and edit those separated tracks as wav or mp3 files.

Download for iOS Download for Android

A look inside the app

From file import to finished stems — the whole flow lives on your device.

Unmix iOS home screen showing AI audio extractor

Unmix app showing vocal, bass, drums and acapella stems

Unmix built-in audio editor with trim and download controls

Unmix projects library with saved stem separations

What you get with 5-stem separation

Each stem isolated separately for maximum flexibility.

Vocals stem

Lead and backing vocals combined. The cleanest stem in most separations. Use for acapellas, remixes, and vocal practice.

Drums stem

Kick, snare, hi-hats, and cymbals. Good for drummers practicing along and for producers who need the rhythmic foundation.

Bass, piano, and other

Three more stems covering bass guitar/synth, piano/keys, and everything else. Quality varies by source material.

Try web first, then go deeper

The recommended workflow for getting the best value.

1. Test in browser (free)

Upload your track to the browser tool and listen to the 2-stem result. If vocals separate cleanly, the track is a good candidate.

2. Check the hardest section

Skip to the chorus. If the quality is usable there, the rest of the song will be even better.

3. Use the app for full stems

Once you know a track separates well, process it in the app for individual instrument control.

Technical specifications

	Browser (free)	iOS / Android	Mac
Stems	2 (vocals + accompaniment)	5 (vocals, drums, bass, piano, other)	5 (vocals, drums, bass, piano, other)
Processing	On-device via Web Audio API + ONNX Runtime	On-device, no internet required	On-device, native Apple Silicon + Intel
Input formats	MP3, WAV, M4A, OGG, FLAC, MP4, WebM, MOV	MP3, WAV, M4A, FLAC, MP4	MP3, WAV, M4A, FLAC, MP4, MOV
Export format	WAV	WAV	WAV
Account required	No	No	No
Internet required	Only to load the page initially	No	No

When to reach for which Unmix — and when the browser is enough

The apps aren't automatically better. They're better for specific scenarios. Here's the honest decision.

When mobile is genuinely better than the browser

Commute time (30–60 min train rides process 4–6 tracks). Gig prep (load a setlist on an iPad, process overnight on charger). No-internet scenarios like studios with restricted networks, flights, or remote recording sessions. Batch library work for DJs. If you're processing stems while walking to a studio, mobile wins every time.

Processing speed by device

Rough benchmarks on a 4-minute song, Balanced preset: M2/M3 MacBook Air: 15–25 seconds. iPad Pro (M2): 25–40 seconds. iPhone 15 Pro: 40–60 seconds. iPhone 12–14: 60–90 seconds. Android flagships (Pixel 8+, Galaxy S24+): 60–90 seconds. Older Android (2+ years old): 2–4 minutes. The Mac version benefits most from Apple Silicon's unified memory for longer files.

When the browser is completely enough

If you only need 2-stem separation (vocals + accompaniment) and process fewer than 5 tracks per month, the free browser tool is all you need. No point buying the app. The app's value kicks in when you want 5-stem control (individual drums, bass, piano stems) or need offline processing. Many users stay on browser-only forever — which is by design.

Test it on your own track

Upload any song and hear the separated stems in seconds. Free, no account needed.

Try In Browser Free

FAQ

Are the apps free?

Download from the App Store, Google Play, or Mac App Store to see current pricing and any free trial options. The browser tool is always free.

Should I test on web first?

Yes. The browser gives a quick free quality check on your specific track before you use the app.

What is the difference from the browser version?

The browser splits into 2 stems (vocals + accompaniment). The apps split into 5 stems (vocals, drums, bass, piano, other).

Do the apps work offline?

Yes. All processing happens on your device. No internet connection needed.

Does the Mac app support Apple Silicon?

Yes. The app runs natively on both Apple Silicon and Intel Macs.

Can I process long tracks?

Yes. The apps handle longer files than the browser. The Mac version is especially good for large or batch processing.

Does the app drain battery quickly?

On iPhone 14 Pro or newer, processing a 3-minute song uses roughly 2–3% battery (similar to 15 minutes of video streaming). On Android flagships (Pixel 8, Galaxy S24), expect 3–5% per song. On older devices, more. For batch processing of 20+ songs, keep the device on charger — the Neural Engine runs hot and thermal throttles after extended use.

Can I process a song while my phone is locked or in the background?

On iOS 17+, Unmix uses background audio processing permissions to continue separating when the screen is off, but iOS may pause the app after about 10 minutes of backgrounding. Android handles background tasks more flexibly depending on your device's battery optimization settings. For uninterrupted batch work, keep the app open and the device screen on dim.

Does the Mac app support external drives and Finder drag-and-drop?

Yes on both. The Mac app reads files from any mounted drive (internal SSD, external USB-C drives, network shares like SMB) and supports drag-and-drop from Finder or any other Mac app. Output files can save to any writable location. For large batch jobs from a DJ library on external storage, you don't need to copy files first.