Best iOS Apps for AI Stem Separation (2025) and an Up-and-Comer that is 100% Free
AI-powered stem separation is revolutionizing how musicians and creators remix, learn, and produce music.
These iOS apps let you isolate vocals, drums, bass, guitar, and piano directly on your iPhone — no desktop setup required.
Below are the best iOS apps for AI stem separation, ranked by technical merit, usability, and verified feedback, plus one up-and-coming 100 % free contender, which brings on-device AI separation to everyone.
⚙️ How We Ranked These Apps
- Separation accuracy & quality
- Instrument coverage (vocals, drums, bass, guitar, piano)
- Speed & usability
- Workflow & export options.
- Pricing transparency
🥇 Moises — The Musician’s App
⭐ 4.7 • 24 K Ratings
Why #1: Moises is the most established and technically capable AI stem separation app on iOS, with powerful musician-focused features for learning, practice, and remixing.
💵 Price
Premium ≈ $5.99/month, $39.99/year for unlimited uploads and HQ exports.
✅ Pros
- 5-stem separation (vocals / drums / bass / guitar / piano)
- Tempo & key control, looping, chord detection
- Works on iOS, Android, and Web
- Excellent for practice and arrangement
⚠️ Cons
- Free plan limits daily uploads
- Some bleed in complex mixes
- Premium required for unlimited use
🥈 Stemz — Remover Vocal Audio Pro
⭐ 4.7 • 15K Ratings
Why #2: Stemz offers lightning-fast AI separation with an interface built for DJs, remixers, and mobile creators.
💵 Price
Freemium model – free to try; full exports and unlimited separations require a subscription (~ $7.99/week or $39.99/year).
✅ Pros
- True 5-stem AI separation (vocals / drums / bass / piano / other)
- Real-time stem sliders (solo / mute / loop)
- Fast on-device processing with low latency
- Ideal for DJs and live remixing
⚠️ Cons
- Exports require subscription
- Minor lag or crashes on older devices
- Slight artifacting in dense mixes
🥉 BandLab - Music Maker & Beats
⭐ 4.8 • 439K Ratings
Why #3:
BandLab’s built-in Splitter adds basic AI isolation to its free mobile DAW, making it a good option for casual users and songwriters.
💵 Price
Free Splitter included; BandLab Membership ($14.99/month or $99/year) adds guitar / piano stems and priority processing.
✅ Pros
- 4-stem AI Splitter (vocals / drums / bass / other)
- Integrated studio workflow and collaboration
- Loop, solo, and export stems seamlessly
⚠️ Cons
- Not a dedicated isolation tool
- Advanced stems require membership
- Reports of upload resets and cutouts
4️⃣ Slow Down Music Transcribe+
⭐ 4.5 • 4.7K Ratings
💵 Price
$4.99/month or $19.99/year or $49.99 lifetime
✅ Pros
- High-quality time-stretch with pitch retention
- Smart EQ for instrument focus
- Loop points & markers for practice
- Works offline
⚠️ Cons
- Not true AI separation
- Geared toward learning, not remixing
5️⃣ Vocal Remover: Music Separator
⭐ 4.4 • 6.8K Ratings
💵 Price
Freemium – basic splits free; subscription ($4.99/week or $8.99 monthly) unlocks HQ exports and batch processing.
✅ Pros
- One-tap vocal / instrumental split
- Fast cloud processing
- Great for karaoke and backing tracks
⚠️ Cons
- Only 2 stems (vocal + instrumental)
- Noticeable artifacts in dense songs
- Ads in free tier
🚀 Up-and-Coming: UpRes (100 % Free)
⭐ 4.7 • 148 Ratings
💵 Price
Completely free — no ads, subscriptions, or usage limits.
✅ Highlights
- True 5-stem AI separation (vocals / drums / bass / guitar / piano)
- On-device AI (no uploads or cloud processing)
- High-quality M4A / CAF / WAV exports
- Support on iPhone, iPad and Mac
- Fast and privacy-safe
⚠️ Cons
- Limited public feedback so far
- iOS-only at launch
📊 Summary Table
🎯 Final Takeaway
-
Moises is the most technically advanced and musician-friendly AI stem separator on iOS.
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Stemz delivers speed and simplicity for DJs and remixers.
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BandLab offers basic splitting inside a powerful mobile DAW.
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Slow Down Music and Vocal Remover cover practice and karaoke needs.
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UpRes is the up-and-coming free option bringing true on-device AI stem separation to everyone in 2025.