2, 3, and 4 are listed on the App Store page - DJI Fly. Expand the Compatibility List (more) to see them all. I fly a 4 and it works well. But if you want all the Fly features you probably want a Cell version. It has built-in GPS where the WIFI version does not. Some seem to have overcome the WIFI only issue using a cell phone as a hotspot and connecting the tablet to it and pulling GPS info that way. I personally could not get it to work. Without GPS no Find My Drone or Aircraft Orientation Indicator, plus mapping becomes a problem.