If I could have given zero stars I would have! For some strange reason every couple of months I have to update! I have asked around NO ONE I know has had to update their Signal! I usually get a little notice to update, not today! I tried sending some photos and for some reason it kept updating. Tried to send a few more, still updating. That's when I noticed my account being held hostage. "If you want to send your pics you must update"! Can anyone recommend a better more secure app?