A lot of the basic options that you would find in any messaging app are missing. Changed from 2 to 1 star. Very slow! When screen is locked, cannot answer at all. Missed calls while phone never rang: sitting next to my phone for 1hr with my screen unlocked to improve my chances to answer the calls, never rang and had 2 missed calls. I was full of hope with the latest update which ended up to be just look update. I manage 2 businesses I can't afford this! Looking for another solution.