I planned missions to the two apps with the same waypoints ,as close as possible, and functions. I used straight corners, Two POI's and differing elevations on each waypoint. On the Litchi app I had Focus POI on each waypoint. For Mission Planner I had a Target-WP mission. I changed which POI to focus on at the same waypoint for each application. For me, Mission Planner was the winner of this unofficial test. It tracked smoothly between elevations and kept focus on the appropriate POI at all times with a smooth transition between them. Litchi didn't appear to have the gimbal set correctly at the beginning of the video. It didn't correct until it got to almost waypoint 2. The focus on the POI's seemed to be off mark as well. this video is a Side by Side comparison starting from the same waypoint.