An extension of Foursquare, this popular app, which receives 8 million daily check ins, allows users to keep track of their favourite locations with their personal lifelog map, which they can opt to share with friends via Facebook and Twitter. Users can also add images and notes to remind themselves what was just so great about that particular business, earning sticker rewards along the way.
In March 2015, YouTube launched support for publishing and viewing 360-degree videos, with playback on its website and its Android mobile apps. Parent company Google also announced that it would collaborate with camera manufacturers to make it easier for creators to upload 360-degree content recorded with their products to YouTube. However, in 2017, Google and YouTube began to promote an alternative stereoscopic video format known as VR180, which is limited to a 180-degree field of view, but is promoted as being more accessible to produce than 360-degree video, and allowing more depth to be maintained by not subjecting the video to equirectangular projection