https://techcrunch.com/2019/03/19/angry-birds-ar-is-coming-to-iphone-this-spring/

Angry Birds: Isle of Pigs took the scenic route to the iPhone. Rovio began flirting with augmented reality on the Magic Leap of all places, releasing First Person Slingshot for the headset last year. Last month, Angry Birds VR: Isle of Pigs hit Steam for the HTC Vive and Oculus Rift.

Now, it seems, the AR version of the title is finally ready for a mainstream audience, as Rovio preps the game for a spring release on iOS. The game, developed by Swedish company Resolution Games, builds on the learnings from its predecessors, creating a customized version of the game for the mobile form factor.