Disney Emoji Blitz
Emoji Blitz is game-based app from Disney where users can play and collect hundreds of Disney and Pixar emojis. The game includes lots of rounds, prizes, and missions. The app does include in app purchases, location-based services and some advertising.
Disney provides a really useful article on 'Getting Started with Disney Emoji Blitz'. Look out for the related articles at the bottom of the page too for more hints and tips.
The app is available on iOS and Android.