The app works, but does not catch every single movement. I had a person walk to my door and the camera did not catch them. That was very alarming. I keep telling myself to buy the Ring door bell. I did see on the Ring reviews errors like this as well. I still need to try another service. Takes over 3 mins for the mic to work so who ever is at the door is gone by then, and I wish the siren was louder.