The app WAS excellent, until a couple of weeks ago when it logged me out and when I tried to log back in it tells me "invalid email" and will not let me in. Still works from laptop, so it is definitely the app. Contacted customer service via chat and reset password, but nothing works for fixing for use with the app. VERY disappointed, since these cameras are being used as a security measure and we rely on notification cations on our phones, but they are totally ineffective now.