Description Keep your SMS messages secret. Even if someone has your phone they can't read your messages. Send and receive coded messages. Free 14 day trial. How? Write a message. Set the code. Send a message. Receive a message. Set the code. Decode the message. Coded messages look like this: Wpdmlyet!vpn**cqtv(lodfv.. Features: Write messages. Receive messages. Set the message port. Set the code. Codes are six characters long.