Stemulator vs VinylCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
VinylCheck
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At the record store wondering "Do I already own this?" Digging through crates at the record convention and feeling paranoid about opening up Discogs on your phone? VinylCheck instantly helps you search your collection to see if you own something, and which version it is. Scan a barcode or search by artist and album to check your Discogs collection and wantlist in seconds. Avoid the awkward gaze of record store owners who don’t like customers using Discogs while shopping (it happens). SCAN BARCODES Point your camera at any record's barcode for instant lookup. Works with UPC and EAN codes. CHECK YOUR COLLECTION See immediately whether you own it, want it, or haven't logged it. Color-coded badges make status clear at a glance. SEE PRICING View Discogs marketplace pricing — low, median, and high — to know if you're getting a fair deal. SEARCH MANUALLY No barcode? Search by artist or album title. Results group different pressings so you can find the exact version. MANAGE YOUR WANTLIST Add or remove records from your Discogs wantlist directly from search results. WORKS OFFLINE Your collection syncs locally, so you can check ownership even without signal in a basement record shop. This app requires a free Discogs account.
Screenshots
Verdict
The clearest difference is price: Stemulator at Free against VinylCheck's $0.99. Stemulator also leads on update cadence (every 9 days vs every 2 months) and device support (4 vs 2). VinylCheck's advantage is in-app purchases (none vs 8). On ads 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
Stemulator is free to download; VinylCheck costs $0.99 up front. Stemulator sells 8 in-app purchases, starting at $4.99 per month. VinylCheck asks for nothing beyond the download.
Stemulator ships an update every 9 days, VinylCheck every 2 months. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.
| Parameter | Stemulator | VinylCheck |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (14 ratings) — better | — |
| Positive reviews | 94.4% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 60 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Stemulator LLC | William Chatham |
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
VinylCheck
No in-app purchases









