Voia Tracker

VoiaTracker turns your iPhone into a wireless motion tracker and camera feed for VoiaPreviz, the iPad-based virtual production and pre-visualization app. Mount an iPhone on any camera rig and VoiaPreviz instantly gets a synchronized ARKit pose stream and live video, ready to composite against 3D environments in real time.

VoiaTracker is a companion app. It does nothing on its own: it must be paired with VoiaPreviz running on an iPad on the same Wi-Fi network.

HOW IT WORKS
• Launch VoiaTracker on an iPhone connected to the same Wi-Fi as your iPad.
• VoiaTracker automatically discovers VoiaPreviz over the local network.
• The iPad assigns each connected phone a color and a camera letter (A, B, C…), so every operator on set knows exactly which tracker belongs to which camera.
• ARKit world-tracking data streams continuously to the iPad, while the camera feed is delivered over WebRTC for low-latency previz compositing.

DESIGNED FOR VIRTUAL PRODUCTION
• Real-time ARKit 6-DoF pose streaming (position, rotation, tracking state, floor anchors).
• Live camera video over WebRTC, synchronized with the pose stream.
• Multi-tracker support — run several iPhones at once, each identified by color and camera letter.
• Full-screen color identification mode with animal icons, readable from across the stage.
• Persistent tracker identity — each phone keeps its assignment across restarts.
• Local network only. No cloud. No accounts. No internet required.
• One-tap export of tracking logs for archival or offline review.

ON-SET WORKFLOW
1. Open VoiaPreviz on the iPad and start a session.
2. Launch VoiaTracker on each iPhone rigged to a camera.
3. Grant camera and local network permissions.
4. VoiaPreviz picks up each tracker automatically.
5. Assign cameras from the iPad — the phone shows its assigned letter and color marker instantly.

REQUIREMENTS
• iPhone with ARKit world-tracking support (iPhone XS or newer recommended).
• iOS 18.5 or later.
• Wi-Fi connection on the same local network as an iPad running VoiaPreviz.
• VoiaPreviz app installed on a compatible iPad.

VoiaTracker is built for filmmakers, virtual production crews, VFX supervisors, and previz artists who need reliable, low-cost, wireless on-set tracking without external hardware.