The lock works great from the app but the auto-unlock is inconsistent at best on my Galaxy S8 and has never worked on my wife's Zenphone. To be honest auto-unlock is the main feature I want. It is easier just using the key than getting out your phone, unlocking it, opening the app, then unlocking the door. I ended up getting the keypad just to make it easier. I would not buy the lock if you do not have a newer phone from Apple or Samsung, doesn't seem to work well or at all with older or off brand phones. Auto-lock works but that is just time based.