Tremor: AI DJ Mixer & Stems

4-Deck Video Mixing & Scratch

Free · In‑App Purchases

Real-time stems, 4-deck video mixing, vinyl scratching with real physics, and hardware-verified controller support. A true DJ engine on iPhone and iPad. Tremor — Professional DJ Mixer Mix, scratch, and perform with a real DJ engine — not a wrapper around a phone music player. Tremor runs on a custom audio core, hand-tuned neural models on-device, and a hardware-verified controller path — now native on Mac, iPhone, and iPad. WHY TREMOR • A custom low-latency audio engine built for DJ work — not adapted from a music player • On-device AI — stem separation, beat, key, and song-structure detection run locally. Your music and listening data never leave your device • Hardware-verified controller support — what we list, we test • Pro-grade routing and effects usually reserved for desktop software, now on all your devices 2-DECK & 4-DECK MIXING 2- and 4-deck modes with independent 3-band EQ, filters, trim, and effects. Smooth crossfading with multiple curve types, plus an orbital fader for 4-deck blending. AI AUDIO INTELLIGENCE • Real-time stem separation — isolate vocals, drums, bass, and other instruments live • Neural beat detection with automatic BPM and downbeat tracking • Musical key detection + Camelot for harmonic mixing • Mood, energy, and genre classification • Song-structure analysis — intro, verse, chorus, drop, outro YOUR AI CAN DJ (MAC) Turn on AI Agent Access and AI assistants on your Mac — Claude Code, Claude Desktop, Copilot, Codex, Antigravity, VS Code, or Cursor — take the decks: plan a set with a quick interview, dig your library or SoundCloud, mix with beat-locked transitions, scratch with real fader choreography, and drum live on a built-in instrument kit. All local — loopback-only, off by default, one toggle to revoke. VINYL FEEL & SCRATCHING Touch the platter to scratch with realistic physics — adjustable motor speed, platter feel, smooth inertia, vinyl character (wow & flutter, needle click), and authentic pause/resume. PERFORM • 16 hot-cue pads per deck • Beat loops, manual loops, and rekordbox-style loop resize • Beat jump, key shift, keyboard mode • 16-slot sampler with custom samples, per-pad gain, and per-pad sequencing — loop or one-shot, beat-quantized launches, latched rolls • Three built-in DJ drops — including one voiced by Tremor's own AI • Beat FX and Sound Color FX • Host third-party Audio Unit (AU) effects — bring your favorite plug-ins to the decks BEAT SYNC & HARMONIC MIXING One tap locks tempo and phase between decks. Find Compatible Tracks surfaces songs in key and tempo so every transition lands. LOUDNESS DONE RIGHT Per-track LUFS normalization (EBU R128) levels every track automatically — no more riding the trim between songs. DJ CONTROLLER SUPPORT Hardware-verified support for Pioneer DDJ-FLX2, FLX4, and FLX10, plus Numark Mixtrack Platinum FX and DJ2GO2. Remap any control in the built-in MIDI settings. MULTI-ROUTE AUDIO Send master and headphone cue to separate channels on a 4-channel USB interface — full PFL pre-listening while your master plays to the speakers. VIDEO & STREAMING • Live video mixing with reactive visualizers • Play music videos on the turntable platter • Record your mix (audio + video) • RTMP live streaming to YouTube, Twitch, and Facebook • AirPlay video to an external display SOURCES • Apple Music, Tidal, SoundCloud, and your local library • Shazam song identification and synced lyrics with word-level highlighting, in a dedicated Lyrics window TREMOR PRO One subscription unlocks Pro on Mac, iPhone, and iPad: DJ controller support, Multi-Route Split Output, AI stem separation, AU effect hosting, video mixing, and more. Start with a 7-day free trial. • Monthly: $5.99 • Annual: $39.99 (save 44%) Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage in Settings → Apple ID → Subscriptions. Privacy Policy: https://mindarray.io/tremor/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

  • 5.0
    out of 5
    3 Ratings

FIXES • The video mix preview shows right away instead of staying black until the crossfader moves • Untagged files get a clean title and artist instead of a raw filename, and identified names and cover art stick without re-probing • Rate Tremor from Settings

The developer, MindArray Labs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    MindArray Labs LLC
    Size
    382 MB
    Category
    Music
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 41 more
    • English, Afrikaans, Arabic, Azerbaijani, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Malay, Maltese, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © MindArray Labs LLC