CodeSMS application you needed to send coded messages.
The principle is simple, enter a message, choose a password (encryption key) and press "Encrypt", here you are with a coded message ready to send SMS or Mail.
The person who receives the encoded message must know the password and simply paste the message, enter the agreed password and press the "Decrypt".
Thus, nobody can understand your trade.
CAUTION: Do not, under any circumstances, for the password, or to the encrypted message, enter an extra space or put a capital letter instead of a tiny (and vice versa)