5 ms·This is an ad.by badkungfu 12y agoThis is an ad.applecore 12y agoDid you read the article?minimaxir 12y agoThis isn't an ad, it's just a bad article. (for one, Yo isn't even close to the "most viral app of all time": Flappy Bird and 2048 each were more popular and ubiquitous than Yo.)