Smart Head Track for OpenTrack for iPhone

Overview of the head-tracking app

Smart Head Track is a mobile head-tracking application built to work with OpenTrack on a PC. It lets the game read your head position and orientation using only your phone’s camera and the OpenTrack software—no extra hardware required. This setup can add a new layer of immersion to action and simulation titles.

Installing and preparing OpenTrack

1. Install OpenTrack on your computer.
2. In OpenTrack’s input settings choose “UDP over network.”
3. Set the output protocol to “freetrack 2.0 Enhanced.”
4. Ensure the UDP port OpenTrack uses is permitted through your PC’s firewall and note your PC’s local IP address so the phone can connect to it.

Configuring the app

• On the smartphone app, enter the PC’s IP address and the same UDP port number you configured in OpenTrack.
• Align your face within the camera preview and use the Re-center (or similar) control on the app to automatically set the tracking offset.
• Finally, press START on both the phone app and OpenTrack on the PC to begin streaming head movement data.

Games and compatibility

Compatible titles are those that accept FreeTrack or TrackIR input; examples include:

• Microsoft Flight Simulator X (FSX)
• Euro Truck Simulator 2
• Microsoft Flight Simulator (modern edition)

If a game supports TrackIR or FreeTrack protocols, it should accept input from this setup.

Alternatives and notes

• Top suggested alternative: Minecraft (paid) — if you’re looking for different gameplay to try with head-tracking, paid versions of Minecraft can be modded or configured to use external input systems.
• Keep your phone steady and well-lit for best tracking accuracy.
• If tracking is unstable, verify network connectivity (same Wi‑Fi network and correct IP/port), and confirm the firewall isn’t blocking UDP packets.

If you want, I can provide a concise checklist for the exact firewall rules or troubleshoot common connection issues.