How to Extract an Instrumental Track from a Song on iPhone (Fully Offline)

Practicing an instrument along with a track, prepping a DJ set, building a backing track for a live set, or just wanting to hear how a bassline actually moves without the vocal on top of it — all of these need the same thing: a version of the song with one part isolated, cleanly, without bleed from everything else.

This guide covers how to pull individual stems — drums, bass, vocals, or "everything else" — from any track directly on an iPhone, no upload required.

Why do this on-device instead of in the cloud?

A few practical reasons this matters beyond just privacy:

• No upload time — separation starts immediately instead of waiting for a file to transfer
• Works without an internet connection, useful in a rehearsal room or on the road
• Unreleased tracks, DJ edits, or client stems never sit on someone else's server
• No recurring subscription for something you might only need for one gig or one practice session

Step by step

1. Open OffgridStem and import the track from Files or your Photos library.
2. Pick the stem you want isolated — vocals, drums, bass, piano, guitar, or other instruments — or select several at once.
3. Processing happens entirely on your device, so there's no queue and no upload step to wait on.
4. Preview each stem individually before exporting, so you can check the separation is clean.
5. Export the stems you need — either separately, or mixed back together minus the part you removed.

Frequently asked questions

Does this work without an internet connection?

Yes — all separation happens on-device, so it works fully offline, including in Airplane Mode.

Is my audio uploaded anywhere?

No. Nothing is sent to a server as part of processing. See our Privacy Policy for details.

Can I isolate more than one stem at a time?

Yes — select as many stems as you need, and export them individually or recombine everything except the part you removed.

Do I need a subscription?

No — OffgridStem is a one-time purchase, not a recurring subscription.

More from Offgrid Studio

If you also record voiceovers or podcasts, OffgridVox cleans up background noise the same way — entirely on-device. And OffgridScribe transcribes and summarizes recordings without ever uploading them.