CryptBoard

CryptBoard is an application that provides encryption of text messages before you send them throgh "another messaging app" and your friend decrypts messages outside of "another messaging app" after receiving it.

You first prepare a text message inside CryptBoard.CryptBoard automatically encrypts it and send encrypted message to messaging app you selected (Optionally you can copy and paste it to your favourite messaging app).
Your friend receives encrypted message, send it to CryptBoard by clicking the cryptboard link and then CryptBoard automatically decrypts the messages.(Optionally you can copy and paste your encrypted message into CryptBoard).

CrypBoard is totally secure.CryptBoard does not need any permission.

*Some chat applications may not support CryptBoard links.