HeadTrack

I got it for DCS—basically, everything works great if you set it up right. The only thing that might be a bit annoying sometimes is a slight jerking motion if you keep your head still (maybe a system with dead zones could solve this problem somehow?) Otherwise, it's decent.

Bought this mainly for DCS World and I’m really happy with it. Using my phone as a head tracker works much better than I expected. Setup was quick and easy, and after some tweaking it feels very natural in the cockpit. The developer is also doing a great job — updates actually bring useful features, not just fixes. The new option to turn off the phone screen is a small but very nice addition for simulator players. It makes DCS and MSFS much more immersive. Looking around the cockpit with head movement feels so much better than using a mouse. Definitely recommend it if you want affordable head tracking without buying expensive hardware.

TURNS OUT My windows firewall was blocking Headtrack! I was being absolutely silly! This app is AMAZING! just check your firewall settings!!! <3 ------- OLD REVIEW (me being stupid) Used the Demo. It was SWEEEEEETTT. One hour of perfect functionality. SO I paid for FULL. Appe instantly broke. iPhone app no longer connects to desktop app. No matter what I try. I emailed the developer, no answer, it's been 5 days.