If I could give this app -5 I'd do it 5 times. The worst most destructive app I've ever used. I sent a message to a close friend of mine, checked for a reply twice and noticed the 2nd time it was gone. I became quite angry with her for deleting it as I needed and found that disrespectful. I was rude to her. We got in to an 8 hour fight. Now our relationship is destroyed. She swore that she hadn't delivered it, I know I hadn't. Now we're ruined. Wickr should of got off it quicker.