Not just for Facebook friends: Message people in your phone book and just enter a phone number to add a new contact.
Group chats: Create groups for the people you message most. Name them, set group photos and keep them all in one place.
Photos and videos: Shoot videos and snap selfies or other photos right from the app and send them with one tap.
Chat heads: Keep the conversation going while you use other apps.
Free calls: Talk as long as you want, even with people in other countries. (Calls are free over Wi-Fi. Otherwise, standard data charges apply.)
Even more ways to message:
Bring your conversations to life with stickers.
Preview your gallery photos and videos without leaving the conversation--then choose the perfect ones to send.
Record voice messages when you have more to say.