iOS 10 Message Apps
iOS 10 also supports iMessage apps that allow users to access stickers, crazy effects and more from inside iMessage with special message apps. Here's how to use iMessage apps on iOS 10.
Developers can now create iMessage apps that you use right inside iMessage for faster access to fun communication apps. This is not a third party keyboard or a standalone app.
When you are in an iMessage conversation you can tap on the App Store icon and then you can tap on a new iMessage app to share fun videos, play messaging games and more.