Playground AR (aka AR Stickers) allowed users to place virtual characters and objects in augmented reality via the Camera App on Pixel phones. Launched December 11, 2017; shut down August 20, 2020 — it lived 2 years. One of 25 Google products killed in 2020. https://www.xda-developers.com/google-no-longer-offer-playground-ar-stickers-future-pixel-phones-starting-pixel-4a/ Data: Killed by Google (killedbygoogle.com, MIT).