Facebook Messenger (for iPhone)

Facebook Messenger is an expertly designed app. It's easy to use and feels spacious, unlike many increasingly cramped social networking apps.

Facebook Messenger has a cornucopia of clever, well-made stickers available. Most of them are free.

Facebook Messenger lets you easily add video, pictures, and even audio messages to a chat. But the app's killer feature comes in the form of animated Pusheen stickers.

From the main page of Facebook Messenger you can quickly organize your messages.

Facebook Messenger groups are very flexible. You can mute groups, leave a group yourself, rename a group, or eject any other member. There are no special permissions.

Facebook Messenger lets you make voice-over-IP calls to other users for free. No voice plan required!