I have had the 3DR for several years. My app no longer worked so i was hoping to find one that worked. I searched the web to see if there was a replacement. I installed Sidepilot and lo and behold it worked. Took a little getting used to it but i seem to be getting the hang of it. I do have one question When taking pictures, is there a way to switch back and forth between movies and stills? The old app let me do a few of those things. Using a GoPro 4.