Most regretful update! I have used this app for many years. So far so good until the recent two updates that failed the authentication check. Worse-still  after retrying  it ended up having one of my email accounts blocked as if it's hijacked. This happened on all my devices so I believe it's not device- or os- specific  and I believe mine is not an isolated case. I am going to uninstall this irresponsible app for good.
January 04 2017