So disappointed with this. App is difficult to use: playback never starts at the right spot when tapping event notification, playback navigation doesn't make sense. Not sure if it's the app or the cameras (4 total now) but they will not update - they always freeze when updating. Only resolution is to flash camera firmware with an old version and stay at that version. What a PITA, especially since one camera is outside and requires me to setup and climb a ladder to get to it. Not happy.