I don’t use Facebook and have no profile . I do , however , use WhatsApp for people known to me. This is for pictures etc that my Giff Gaff would otherwise charge 30 p per photo. It is said to use end to end encryption and is , apparently, free? How can this be? Even if they wanted , I keep no bank stuff on my phone. I like it but am puzzled how it can be free , particularly when the phone is using wi fi.