Multichannel REC turns your iPhone or iPad into a professional multichannel field recorder. Plug in a USB-C or Class-Compliant audio interface and capture up to 128 channels straight to broadcast-standard files — no computer required. RECORDING • Up to 128 channels from any Class-Compliant USB audio interface • WAV / RF64 for single files larger than 4 GB • 44.1, 48 or 96 kHz · 16-bit or 24-bit • Rock-solid background recording — keep capturing with the screen off BROADCAST METADATA • Full BWF + iXML metadata: scene, take, notes • A JSON sidecar written alongside every take • Edit metadata live while recording • UCS (Universal Category System) tagging, Soundminer-compatible — instant and on-device, or with the optional Gemini engine using your own key MONITORING & METERING • Real-time VU meters and live waveform for every channel • Ambisonic Decoder for the SPCMIC: monitor in stereo (XY, ORTF) or KU100 binaural • AirPods head-tracking keeps the sound field anchored as you turn your head • "Particles" visualizer — see the direction of sources in real time ORGANIZE IN THE FIELD • Tag takes with GPS and find them on a map with clustering • Attach reference photos (slate, mic placement) from the camera or your library • Live Activity / Dynamic Island shows recording status at a glance • iCloud Drive sync, AirDrop and full Files-app access to every recording Built for sound recordists, location-sound and field-recording professionals, and anyone who needs more than two channels in their pocket. Multichannel REC stores everything on your device. No ads, no analytics, no account. See our Privacy Policy for the single optional cloud feature.