iPhone + iPad combo is a win
Exactly what I was looking for. Other apps make you use the same device to film and display. This one lets you film down the line with the good camera on your iPhone, while it displays at 120fps in front of you on an iPad. I had it working in less than 5 minutes. It tracked the clubhead and placed lines automatically. I’m sure there are more features but I’d be happy with just this. A+