The Let social network that differentiates itself from others in two ways: it's a purely mobile-based network and it uses gamifcation rather than an algorithm to determine what's worthy of showing up on your personal feed.
Let has its users evaluate content with a rating system of stars in order to determine what should get the most exposure. Posts can be given up to three stars and quite simply, the more stars a post has, the more others will see it. This system was put in place to cut down on updates that are boring or irrelevant and force people to really be conscious of what they're putting out to the world. Because of these unique features, Let is extremely popular among teens, particularly girls between the ages of 13 and 18.