Sending hidden messages on an iPhone could be a enjoyable and efficient method to talk privately with others. There are a number of other ways to do that, together with utilizing invisible ink, code, and even sending a message inside a picture.
One of many easiest methods to ship a hidden message on an iPhone is to make use of invisible ink. This may be accomplished by writing a message in a light-weight colour, akin to white or yellow, on a chunk of paper. The message will then be invisible to the bare eye, however it may be revealed by shining a black gentle on it.
