I have a LG smart phone, that Zsight has never been compatible with. Have been waiting on a version that would work, but doesn't seem that one will ever be available. For that reason and as a surveillance dealer, I have never ordered any of the Zmodo QR Code DVR's. Wish that the old ZMD-DD-SBN8 model would become available again. Have to use the SBN6, no matter the number of camera's, so that my customers can use their smart phone (no matter what it is) to access their systems.