I tried to comment here earlier but did not have enough steem power to do so, the app just told me it was an error, would be nice if it described "wait for your power to recharge". Also, I downloaded and logged in by the morning, got the error, forgot about it, tried to comment now and was logged off. I expected it to keep logged in, don't know why it was not persistant, hope I do not need to enter my posting key every day or every couple of hours to log back in (used on iOS Testflight)