Phone-based singers and musicians wanting backing tracks have a cheap option here, though the free allowance isn't stated.
Kenning's take
What it does
Stemz is an iPhone and iPad app from MWM that uses AI to split a song into separate parts such as vocals, drums and bass. Users can remove the vocals for karaoke, mute an instrument to make a backing track, change the tempo without changing pitch, and cut or merge tracks. It also builds mashups from two songs.
- vocal remover for karaoke and acapellas
- isolates or mutes drums, bass or guitar
- changes tempo without changing pitch
- audio editor to cut and merge tracks
- one-tap mashups from two songs
- stem creation for remixing
Who it suits. Musicians, singers and DJs who want backing tracks or isolated parts of songs on their phone.
Key facts
- Category
- Music & audio
- Made by
- MWM SAS
- Based in
- France
- Launched
- 2022
- Works on
- iPhone
- In the UK
- Yes
- Free plan
- free download; paid plans unlock Pro features (free allowance not stated)
Pricing
| Plan | Price | Billed |
|---|---|---|
| Stemz Pro (iOS) | £4.49 | month |
| Stemz Pro (iOS) | £9.99 | month |
| Stemz Pro (iOS) | £35.99 | year |
| Unlock 1 track (iOS) | £1.99 | one-off |
Ratings
FAQ
Is Stemz (MWM) free?
Yes, there is a free option (free download; paid plans unlock Pro features (free allowance not stated)). Pricing: Free download; Stemz Pro from £4.49 to £9.99 a month or £35.99 a year, weekly plans £1.79 to £7.99, single track £1.99 (UK App Store, checked 2026-10-10).
What devices does Stemz (MWM) work on?
Stemz (MWM) is available on: iPhone and iPad.
Who makes Stemz (MWM)?
Stemz (MWM) is made by MWM SAS, based in France.
Facts from the maker's own pages and the sources listed. Checked 2026-10-11.
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