Spleeter vs Stemulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spleeter
This app uses AI to separate audio tracks into vocals and accompaniments. It processes audio directly on your device for efficient performance and offers features like track volume adjustment and sound processing. Easily import audio from various sources and share your creations.
- AI-powered vocal and accompaniment extraction
- Seamless separation of music of any duration
- Fine-tune individual track volumes
- Resynthesis export support
- Import from albums, files, YouTube, web pages
- Sound processing effects
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Spleeter, the Audio Track Separation Master, is your go-to tool for extracting accompaniments and vocals by effortlessly separating audio tracks. Leveraging iOS's integrated machine learning framework (CoreML), Spleeter ensures a seamless audio separation process right on your device, sparing your precious network bandwidth. ◉ AI-Powered Extraction of Two Tracks (Accompaniment, Vocals) ◉ Seamless Separation of Music of Any Duration ◉ Unmatched Quality in Track Separation for Crystal-Clear Audio ◉ Fine-Tune Individual Track Volumes Post-Extraction, with Support for Resynthesis Export ◉ Versatile Extraction Capabilities Across Various Audio Sources Import audio effortlessly from your albums, files, iTunes Music, YouTube, and web pages, with compatibility for a wide array of audio formats. ◉ Effortless Sharing of Audio Through Various Channels (AirDrop, Files, Other Apps, etc.) ◉ Conveniently Review Extraction History ◉ Stay Tuned for Exciting Upcoming Features ◉ Sound Processing including reverb, equalization, pitch adjustment, delay, high-pass, low-pass, and more.
Stemulator
This app uses advanced audio separation models to extract individual elements from any song with studio-quality precision. It offers modes for producers to download stems and for musicians to play along with real-time mixing and chord mapping.
- Extract up to 18 stems per track
- Producers Mode for stem downloads
- Musicians Mode for real-time mixing
- Generate MIDI chord maps
- Real-time chord mapping and waterfall MIDI piano
- Supports major audio formats for import and export
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Stemulator is the ultimate stem separation app for producers, musicians, DJs, and audio enthusiasts. Using advanced audio separation models, Stemulator extracts individual elements from any song with studio-quality precision. SEPARATE UP TO 18 STEMS PER TRACK • Vocals: Lead Vocal, Backing Vocal • Rhythm: Drums, Bass, Drumless • Drums: Kick, Snare, Hi-Hat, Toms, Cymbals • Instruments: Piano, Guitar, Strings, Keys/Synths, Winds, Ensemble • Full Mix: Instrumental • MIDI Chord Map TWO POWERFUL MODES Producers Mode — Download every stem for your projects: • Download separated stems in WAV, AIFF, or MP3 • Separate drums into Kick, Snare, Hi-Hat, Toms & Cymbals • Isolate instruments: Piano, Guitar, Strings, Keys/Synths, Winds • Separate vocals into Lead & Backing • Generate MIDI chord maps from any track Musicians Mode — A full DAW-style mixer for playing along: • Mute, solo & mix individual stems in real time • Adjust key & tempo with studio-quality pitch shifting • Real-time chord mapping & waterfall MIDI piano synced to playback • Real-time tabs for guitar, piano, & bass • Real-time capo recommendations for guitarists • Beat loop — 4, 8, 16, 32 or 64 beats, quantized to the beat grid • Synced metronome with multiple click sounds • Export chord charts as PDF or MIDI files • Export your custom mix as WAV, AIFF, or MP3 REAL-TIME CHORD MAPPING Stemulator analyzes the harmonic progression of your track and maps out every chord change—synced to playback in real time. Follow along as you play, export as a printable PDF chord chart, or download as a MIDI file for your DAW. STUDIO QUALITY OUTPUT Stemulator delivers the most advanced audio separation available — professional-grade stems with unmatched clarity and precision. Whether you're creating remixes, practicing along with isolated instruments, or producing new tracks, you'll get clean, artifact-free stems ready for your workflow. SUPPORTS ALL MAJOR FORMATS Import your music in WAV, AIFF, MP3, FLAC, M4A, or OGG format. Export your separated stems in high-quality WAV, AIFF, or MP3 for maximum flexibility in your DAW or audio editor. PERFECT FOR: • Producers – Sample and remix with clean, separated elements • Musicians – Mix stems, transpose key & tempo, follow chord maps • DJs – Create unique mashups and transitions • Karaoke – Remove vocals from any song instantly • Educators – Isolate specific parts for music lessons • Transcribers – Hear individual instruments clearly FOUR FLEXIBLE PLANS Free: Try Stemulator with 3 free stem separations Professional: 10 Stemulations per month, 5-stem separation Studio: Unlimited Stemulations, studio quality, 6-stem separation + Drumless, chord map generation & PDF export Audiophile: Full access to all 18 stems including individual drum separation, vocal separation, instrument isolation, MIDI chord export & real-time chord mapping HOW IT WORKS 1. Upload any song from your library 2. Choose Musicians or Producers mode 3. Stemulate your audio 4. Mix, play along, or download your stems Whether you're isolating a guitar solo to learn, removing vocals for karaoke night, transposing a song to your key, or extracting drums for your next production, Stemulator makes professional stem separation accessible to everyone. Download Stemulator today and unlock the individual elements hidden in your favorite music. Terms of Use: https://stemulator.app/terms.html
Screenshots
Verdict
The clearest difference is rating: Stemulator at 4.7 against Spleeter's 3.0. Stemulator also leads on ads (none vs shown) and review sentiment (94% vs 67%). Spleeter's advantage is in-app purchases (none vs 8). On price and iOS requirement 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. Stemulator sells 8 in-app purchases, starting at $4.99 per month. Spleeter asks for nothing beyond the download.
Stemulator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Stemulator has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of Spleeter's written reviews are positive against 94% of Stemulator's.
Spleeter ships an update every 6 weeks, Stemulator every 9 days. The most recent releases landed on October 8, 2026 and October 22, 2026 respectively.
| Parameter | Spleeter | Stemulator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.7 (13 ratings) — better |
| Positive reviews | 66.7% of reviews | 94.4% of reviews — better |
| Number of ratings | 2 | 13 — better |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 38 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | 文娟 蔡 | Stemulator LLC |
Customer experience
Spleeter
Stemulator
In-app purchases
Spleeter
No in-app purchases
Stemulator
- Professional$4.991 Month
- Studio$9.991 Month
- Audiophile$19.991 Month
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- Production$29.991 Month
- Professional (Annual)$39.001 Year
- Studio (Annual)$79.001 Year
- Audiophile (Annual)$149.001 Year
- Production (Annual)$249.001 Year








