iOS: Anyone can pick up your phone and read your text messages. It's also not that difficult for someone to install spy software or for the U.S. government to acquire your messages from your carrier. If you want to keep your text messages private, Black SMS is an app that provides a very simple method for doing so. You simply type in the message, set a password, and send it over to iMessage. The recipient can then use their copy of Black SMS to decrypt the message using the password you set by simply pasting the message into the app and entering the password. (Watch the video above for a demonstration.) More »