with all the bad reviews and the reported weird problems, I was afraid to use DJI Vision and was leaning towards one of the paid apps (AutoPilot, Litchi, FPV+)
update: flew a few more training flights with the camera on, went out over the surf a little. This thing is so easy to use, even without the app/phone. I'm a bit disappointed in the image quality from this camera and can see why they have been upgraded in the more recent models.
Think I'll start saving for that Mavic Pro....