Appsolutely Stupid: Yo The Joker September 3, 2014 LOL/SMH/WTF Yo. That is all this app does. Literally. When you tap a friend’s name, it will send them a “Yo”. According to their description, “The simplest & most efficient communication tool in the world. Yo is a single-tap zero character communication tool. You is everything and anything, it all depends on you, the recipient and the time of the Yo.” So if you want to see if someone is awake, send them a “Yo”…. And then I guess they would “Yo” you back and then you can start texting…. I mean, I would just text them to ask if they are awake. Isn’t that what anyone would do? You can also check out their Yo Index and see what websites and services you can subscribe to for future Yos. If you really want to see what it’s like, you can download it for free from Google Play and the App Store. Leave a Reply Cancel Reply You must be logged in to post a comment.