StemLab vs Morbas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StemLab
This app uses AI to isolate up to six musical stems from any song directly on your device. It offers a multi-track mixer with studio effects, looping, recording, and export capabilities for musicians and producers. No subscription is required for core functionality.
- AI song stem separation
- Multi-track mixer
- Studio effects chain
- A/B looping
- On-device processing
- Stem export
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Split any song into 6 isolated stems on your iPhone — vocals, drums, bass, guitar, piano, and other. Nothing uploads. Nothing waits in a cloud queue. No subscription required. StemLab runs the AI separation entirely on your device, then opens a full multi-track mixer with studio FX, A/B looping, recording, and stem export. Built for musicians, producers, and singers who want clean, isolated stems without monthly fees. SEPARATE Imports MP3, WAV, FLAC, M4A, even MP4 and MOV video — up to 500 MB per file. Pick a 4-stem or 6-stem AI model to extract vocals, drums, bass, guitar, piano, and more in a single pass. Works as a vocal remover, instrumental maker, acapella extractor, and backing track creator. Everything happens on your iPhone — your music never leaves the device. MIX A real multi-track mixer, not just a separator. Per-stem volume, solo, mute. Set A/B loop points to slow down a solo, transcribe a phrase, or rehearse the chorus on repeat. Scrub the timeline with centisecond precision and watch live waveforms render in real time. MAKE IT YOURS Record your own vocal over the instrumental, lay down a guitar take on top of the AI bass, or import any audio file as a custom layer. Build mashups, track covers, write demos, replace a stem entirely — all inside one session, on your phone. ADD EFFECTS Shape each stem with a 6-effect chain: Pitch Shift, Reverb, Delay, Compressor, 4-band EQ, and Saturation. Run Bus FX on the master mix. Bypass any effect without removing it. Save your settings as a reusable preset and load them on the next song with one tap. EXPORT Send out individual stems or a new stereo mixdown in WAV, FLAC, or M4A — now baked with your FX chain, so your Pitch Shift, Reverb, Delay, Compressor, EQ, and Saturation settings carry straight into the export. Pick your sample rate (44.1 / 48 / 96 kHz) and bit depth (16 / 24 / 32-bit). Drop the result straight into your DAW, sampler, looper, or any other app. Built for guitarists isolating solos, bassists transcribing lines, beatmakers pulling clean acapellas, DJs making edits, music teachers building practice tracks, worship leaders covering for missing players, and singers laying covers over original songs. ---------- StemLab Pro unlocks unlimited separations, individual stem export, the full FX chain, and unlimited presets. Available as a one-time lifetime purchase — buy once, keep what you bought. Yearly subscription option also available. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms: https://lauperlabs.com/stemlab/terms Privacy: https://lauperlabs.com/stemlab/privacy
Morbas
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Separate any song into vocals, drums, bass, and other instruments. Control each stem independently with individual volume, mute, and solo controls. Practise at any tempo with real-time pitch shifting and a synced metronome. FEATURES: • AI-powered stem separation (vocals, drums, bass, other) • Independent volume, mute & solo for each stem • Real-time tempo control (0.5×–2×) with live BPM display • Key transpose (pitch shift) with chord transposition • Synced chord display — scrolling teleprompter and full-screen grid • Word-by-word synced lyrics • Click track and section announcer metronome • Set lists for organising practice sessions • Full offline support — download stems for playback without internet • iOS lock screen & AirPods controls • Queue management with shuffle and loop modes Perfect for musicians practising parts, vocalists learning harmonies, DJs isolating elements, or anyone who wants to hear their favourite songs differently.
Screenshots
Verdict
The clearest difference is in-app purchases: Morbas at none against StemLab's 2. Morbas also leads on iOS requirement (16.0 vs 26.2). On price, ads and device support 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. StemLab sells 2 in-app purchases, starting at $4.99 per year. Morbas asks for nothing beyond the download.
| Parameter | StemLab | Morbas |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (20 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 20 — better | — |
| Update frequency | Every 9 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 26.2 | 16.0 — better |
| Further details — not scored | ||
| Size | 338 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Lauper Labs | GenAI LLC |
In-app purchases
StemLab
- StemLab Pro Yearly$4.991 Year
- StemLab Pro Lifetime$16.99
Morbas
No in-app purchases





