Stem Splitter vs Deconpose
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stem Splitter
Isolate and manipulate individual instrument and vocal tracks from any song, entirely on your device. Adjust pitch, tempo, and export stems with a reactive visualizer. Offers a one-time purchase for full functionality after a free trial.
- 6-stem separation (vocals, drums, bass, guitar, piano, other)
- Live reactive visualizer with multiple styles
- Pitch and tempo adjustment for exports
- Automatic BPM detection
- 100% on-device processing
- No ads or subscriptions
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Split any song into clean, isolated stems — 100% on your device. No cloud, no waiting, no subscription. REMOVE VOCALS IN ONE TAP Remove vocals for an instant instrumental, keep only the vocals to study a melody, or mute just the drums, bass, guitar or piano to play along. Every mix is just one tap away. UP TO 6 STEMS Separate Vocals, Drums, Bass, Guitar, Piano and Other — not just the standard 4. Learn a guitar riff note for note, isolate the piano part, or create a cleaner instrumental than ever. PRACTICE SMARTER • Change the key and slow the tempo independently • See the song's original key and the new key after transposing • Loop any section with A-B repeat • Metronome and count-in locked to the song's own beat • Automatic BPM detection, displayed beside the speed control EXPORT EXACTLY WHAT YOU HEAR Export a mixdown with your pitch and speed changes applied, or export every stem as a separate lossless WAV file. LIVE REACTIVE VISUALIZER Your exports play in a dedicated player with a real-time, audio-reactive waveform. Choose from 14 visual styles (Bars, Neon Glow, Glass, Fluid, Circular, Retro EQ, Cassette and more) and 4 color themes. Turn your phone sideways for an immersive full-screen experience. WHY OFFGRIDSTEM • 100% on-device — your music never leaves your phone • No tracking, no ads, ever • One-time purchase — no subscription or expiring credits • Fast — separation runs locally, with no upload or download delays • Private by design — no account or uploads required WHO IT'S FOR • Singers isolating vocals to study melody and phrasing • Guitarists, bassists and pianists learning their parts • Musicians creating backing tracks to play along with • Remixers and producers extracting clean stems from any track • Anyone who wants just the instrumental or just the vocals HOW IT WORKS 1. Import a song, extract audio from a video, or open a file from Files, Mail or WhatsApp 2. OffgridStem separates it into up to 6 clean stems, entirely on your device 3. Mix, mute, solo, and adjust pitch and speed 4. Export a mixdown or individual stems FREE TO TRY Your first 3 songs are full length and fully exportable. After that, songs play as 60-second previews unless you unlock Pro. No ads. No subscription. No cloud. Just your music, separated, on your terms.
Deconpose
This app uses AI to split any song into individual instrument tracks directly on your device. Practice instruments, remove vocals for karaoke, or learn complex rhythms with offline processing and privacy-focused features.
- AI-powered stem separation
- Offline processing
- Mute/isolate instruments
- Tempo and pitch control
- Looping and section playback
- Privacy-focused, no tracking
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Deconpose splits any song into individual instrument tracks — vocals, drums, bass, guitar, piano — directly on your device. No uploads, no account, and the separation needs no internet. PRACTICE ANY INSTRUMENT - Mute the guitar and play along with the real band - Remove vocals for karaoke or vocal practice - Isolate drums to learn complex rhythms - One-tap presets: Guitar Practice, Drumless, Karaoke & more LEARN AT YOUR PACE - Slow down to 0.25x without changing pitch - Shift pitch up or down 12 semitones - Loop any section with draggable A-B markers - Hold a finger on the waveform to zoom in and place loop points precisely - Skip forward and back 10 seconds - Open any song with Siri or from Spotlight: "Open ‹song› in Deconpose" TEMPO, KEY AND BARS (iOS 27) - Tempo and key detected automatically after separation - Both are shown where you are in the song: when the tempo or the key changes, the display follows — and the key follows the pitch control - The metronome clicks on the song's real beats, loops snap to the bar, and the count-in lands on the one - The song's sections appear under the waveform: tap one and exactly that part loops - On iOS 26: tap the tempo yourself POWERED BY AI - State-of-the-art neural network running on your device - 6-stem separation: vocals, drums, bass, guitar, piano, and other - Keeps separating while your iPhone is locked, with progress on the Lock Screen - All processing happens on your iPhone or iPad — your music never leaves your device PRIVACY FIRST - Separation works 100% offline; the internet is only used for the optional song search and for purchases, both with Apple - No account, no sign-up, no tracking - Your music stays on your device FREE TO START - Your first song is completely free — split it and practice with no time limit - On that song: every tool included — solo, mute, slow down, pitch shift, loop - One-time purchase to split unlimited songs and export stems — no subscription WORKS WITH MUSIC YOU OWN - Import audio files from Files, share them to Deconpose from any app, or pick DRM-free downloads from your Music library - Find songs to buy in the iTunes Store (optional search) - Deconpose works with music you own as audio files. Songs streamed from Apple Music or Spotify are copy-protected and can't be imported by any app SUPPORTED FORMATS MP3, WAV, M4A, AIFF, FLAC, CAF
Screenshots
Verdict
The clearest difference is iOS requirement: Stem Splitter at 17.6 against Deconpose's 26.0. On price, rating, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Stem Splitter sells 1 one-off in-app purchase and Deconpose sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Stem Splitter against 5.0 for Deconpose. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Stem Splitter ships an update every 2 weeks, Deconpose every 11 days. The most recent releases landed on November 5, 2026 and November 1, 2026 respectively.
| Parameter | Stem Splitter | Deconpose |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 427 MB | 205 MB |
| Age rating | 4+ | 4+ |
| Developer | Tsz Fung Choi | Ardian Ibrahimaj |
Customer experience
Stem Splitter
Deconpose
In-app purchases
Stem Splitter
- StemCraft Pro Lifetime$24.99
Deconpose
- Deconpose Premium$12.99









