Facebook Messenger
Facebook Messenger is a fast, free and easy way to stay in touch with your friends. Essentially, it is texting, but you don’t have to pay for every message.
Facebook Messenger features receiving messages without opening Facebook application; Chat with groups; Many stickers to express your mood; sending photos; record voice messages; make free calls and know when people have seen your messages (very important).
“Stay logged in so you never miss a message!”