I bought this product because of the ease of use and the ability to loop videos and play them instantly on my phone. The app is terrible. Playback on the Samsung S8 is choppy at best, pausing up to 30 seconds in most cases while it waits (buffers) for the camera. I worked with tech support for a couple of weeks and tried different things. 1) Firmware update, memory card reformatting, using another memory card, restarting the application, trying to use another card and finally using another software (VTC) to play videos. None of these actions fixed the performance. I think the camera just can't send data over Wi-Fi fast enough to support continuous playback. When I tried recording at 60 fps, playback over Wi-Fi just wasn't acceptable. I'll forward the details to tech support. Sometimes they hesitated with the answer, but held on anyway. Finally they offered the RMA block. I still haven't sent the camera back as I don't think it will NEVER work.