Signal Private Messenger is a program that allows you to exchange encrypted messages with your friends. Thanks to the program TextSecure Private Messenger, you can send encrypted messages to one or a group of users in real time, with your friends multimedia attachments, as well as much more. The program does not store the history of your correspondence, as well as encrypts messages to increase privacy. To register in the program, you must specify your phone number. Messages can be sent even to people who are not users of TextSecure Private Messenger, but in this case they will not be encrypted and will be paid at the rate of your mobile operator.