Whispersystems projects are focused on creating simple and easy-to-use tools for secure mobile communication and secure mobile storage. The source for all projects is open, so that anyone can easily verify they work as advertised. They are licensed GPLv3 and will always be free.
S01E04 : The spy in my pocket
Who you are, where you go, what you do. Your phone is spying on you. Who is it telling?