Let's Unmix vs Ruffio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Let's Unmix
This app separates songs into individual instrument tracks like vocals, drums, and bass. You can then adjust volume, panning, and playback speed for each track. It supports various audio formats for import and export, making it ideal for music production and remixing.
- Isolate vocals, drums, bass, piano, and other instruments
- Adjust volume and panning of individual tracks
- Change playback speed
- Waveform editor for region selection
- Import from Media Library, cloud services, and other apps
- Export separated tracks in various formats
- Supports multiple audio formats
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Effortlessly isolate and control your music—now with guitar separation! Separate any song into up to 6 individual tracks—vocals, drums, bass, piano, guitar, and other instruments—right on your device. No uploads, works fully offline. Turn any part into MIDI. Convert vocals, bass, piano, and now guitar to MIDI, then export it to your DAW or other music apps. Once separated, you can save and export these tracks to other apps, including your favorite DAWs (Digital Audio Workstations). Customize your playback by adjusting the volume and panning for each track independently, or even change the playback speed to suit your needs. With the waveform editor, it's easy to select specific regions for playback or export, giving you full control over your audio. Import your music directly from the Media Library, other apps, or cloud services like iCloud, Dropbox, Google Drive, and more. We support a wide range of audio formats, including mp3, m4a, ALAC, AIFF, FLAC, and WAV. Export your edited tracks in m4a, ALAC, AIFF, MIDI, or WAV formats. For the best experience, we recommend using music files with a 44.1kHz sample rate (CD quality). All exports are set to 44.1kHz to ensure consistent, high-quality audio output. One purchase unlocks all features forever. No subscriptions.
Ruffio
This app uses advanced AI to split any song into its individual instrument stems, allowing you to mute or isolate vocals, drums, bass, and more. Create custom backing tracks, karaoke versions, or practice your instrument with isolated parts. All processing happens on your device for privacy and offline use.
- AI stem separation
- Mute vocals for karaoke
- Isolate instruments for practice
- Real-time mixing controls
- Offline audio processing
- Supports various audio/video formats
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Ruffio – Backing Track Maker, Karaoke App, Music Stem Splitter, and AI Music Practice Tool Ruffio is the all-in-one music app that lets you remove vocals from songs, isolate instruments, and create custom multitrack backing tracks using advanced AI audio separation—right on your iPhone or iPad. Whether you're a singer, musician, student, producer, DJ, or music lover, Ruffio helps you unlock the full potential of any track. Using powerful machine learning, Ruffio separates songs into stems—vocals, drums, bass, and accompaniment—so you can mute, solo, or adjust individual instruments. Create karaoke versions, practice your instrument, or hear the mix like never before. --- Powerful AI Features - AI Stem Separation: Split any song into vocals, drums, bass, and other instruments using Spleeter - Mute Vocals: Instantly create karaoke versions of any track - Mute Instruments: Remove drums, bass, guitar, or piano to create your own backing tracks - Solo Mode: Focus on one instrument to learn parts more effectively - Real-Time Mixing: Adjust each stem’s volume to build your perfect mix - Works Offline: Process songs directly on your device—no internet required after setup - Video and Audio Support: Import MP3, WAV, M4A, FLAC, MP4, and MOV files - Private: Your music never leaves your device—no cloud uploads --- How It Works - Import songs from your Music app (local files only) - Open files from iCloud Drive, Dropbox, Google Drive, or Files - Ruffio separates your song into stems using on-device AI - Adjust, mute, or solo each track in real time - Practice, perform, remix, or explore your music in new ways --- Perfect For - Singers – Remove vocals and sing along with real instrumentals - Guitarists – Mute guitar tracks and jam with the band - Drummers – Create drumless tracks to practice rhythm and timing - Bassists – Isolate or remove basslines for deeper learning - Pianists – Focus on keyboard parts or play over piano-free mixes - DJs and Producers – Extract stems for remixing and creative projects - Music Teachers – Make custom practice tools for students - Students – Learn songs by ear and study arrangements in depth - Cover Artists – Make pro-quality karaoke or backing tracks - Music Lovers – Hear hidden layers and details in every song --- Why Choose Ruffio - No subscriptions or locked core features - Fast, on-device audio processing - Simple, clean, user-friendly interface - Based on Spleeter: trusted by producers and musicologists worldwide - Constant updates based on community feedback --- File Support - MP3, M4A, AAC, FLAC, WAV (audio) - MP4, MOV (video audio extraction) - DRM-free songs from your Music app - Files from cloud storage and local folders --- Built with Spleeter Ruffio uses Spleeter, an open-source stem separation model developed by Deezer. This powerful AI is trusted by professional audio engineers and now available in a mobile app designed for everyone. All separation is done locally. Your music stays private. No cloud uploads, no waiting, no ads. --- Support & Feedback We're building Ruffio to be the best music practice and karaoke tool on iOS. Got ideas or issues? Contact us directly: rufusmall@hotmail.com --- Transform the way you learn, practice, and enjoy music. Download Ruffio now and turn any song into a karaoke track, backing track, or stem-separated mix.
Screenshots
Verdict
The clearest difference is in-app purchases: Ruffio at none against Let's Unmix's 1. Ruffio also leads on ads (none vs shown) and update cadence (every 10 days vs every 3 weeks). On price, rating, review sentiment 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. Let's Unmix sells 1 one-off in-app purchase. Ruffio asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.4 for Let's Unmix against 4.4 for Ruffio. That said, the two scores are not equally well evidenced: Ruffio has 434 ratings behind it against 66, so its average is the more settled of the two. Written reviews are what separate them: 69% of Let's Unmix's written reviews are positive against 66% of Ruffio's.
Let's Unmix ships an update every 3 weeks, Ruffio every 10 days. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.
| Parameter | Let's Unmix | Ruffio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (66 ratings) | 4.4 (434 ratings) |
| Positive reviews | 68.8% of reviews — better | 65.9% of reviews |
| Number of ratings | 66 | 434 — better |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 486 MB | 59 MB |
| Age rating | 4+ | 17+ |
| Developer | Hikaru Tsuyumine | Rufus Mall |
Customer experience
Let's Unmix
Ruffio
Bugs and requests
Let's Unmix
Not enough reviews yet to summarise bugs or requests.
Ruffio
Reported bugs
9 issues- YouTube import not working (multiple reports)
- App crashes on iPad
- Audio phasing in and out during playback
- Sliders not responding to input
- Staticky sound quality
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- Drums still audible when slider turned off
- Voice cutting out intermittently
- App not functioning on iPhone 13 Pro
- Blank screen on iPad with missing import button
Requested features
8 requests- Export stems as individual audio files
- Pitch change and tempo adjustment
- Ability to play songs backwards
- Better slider controls and responsiveness
- Playlist management system
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- Easy track deletion without reinstalling
- Cleaner and clearer stem separation
- Better iPad UI with visible import button
In-app purchases
Let's Unmix
- Premium Version$7.99
Ruffio
No in-app purchases









