MyMSG

MyChat is a free messaging app that allows you to easily connect with family & friends across countries and it
provided one of the most demading feature "Private messaging(i.e. Hidden Messaging) " . By using this app
you can send your private messages along with an optional message .Optional message will be shown to the chat window
and by just long holding that message you can see that secret message which is send by your friends.That's why this one is
quite good for private messaging.