"Yo," I said to my colleague Kim Bhasin shortly after I joined The Huffington Post in 2014. I Yo'ed, for a few months. But the app is long gone from my phone, and soon that purple app icon may ...

The world did a collective eye roll when the Yo app, which literally just sends the word "yo" to your friends, managed to raise $1 million from investors. It was truly baffling. Infuriating, even. Now ...

I spent a week on Yo, yo-ing to all the friends of mine who'd downloaded the app. Both of them. Here's how to use it: download, choose a user name, sign in, enter your phone number, wait for Yo to ...

Yo is a joke. It’s an app that does practically nothing, aside from sending a two-letter message to someone you know. There’s really nothing about the app that makes it unique—aside from the fact that ...

Marketers generally react to Yo, the one-touch messaging app, with bemused dismissal. Its sole function lets users ping each other with a single “Yo,” the simplicity of which has sparked no shortage ...

Remember Yo? Launched in the summer of 2014, it simply sent a ‘Yo!’ push notification to a friend of your choice. And yet, thanks to raising $1 million before it went live, it became talk of the town ...

The quick success of mobile messaging application Yo with brands such as the NBA, Showtime and Sony Pictures is a surprise that highlights how a simple approach sometimes works best on mobile.

This article originally appeared in Business Insider. There was a time when Yo was one of the biggest apps in the world. For four days in June 2014, Yo ruled the App Store charts, skyrocketing from ...

We can get any Yo user’s phone number (I actually texted the founder, and he called me back). We can spoof Yo’s from any users, and we can spam any user with as many Yo. We could also send any Yo user ...

Did ya hear? Pokes are back. The Facebook poke is famously content-free; it’s left to the poker and pokee to assign it meaning. (Gentle hello? “I’m thinking of you”? Sexual harassment?) Even Facebook ...

Drop is a lot like Yo in that it’s lightweight and fast, but it’s also very different from Yo in that it’s, you know, actually useful. With Drop you can search for topics that interest you, like ...

Yo! USA TODAY is on Yo. Yo users who want to be in the know can subscribe to USATODAY for "5 things to know today," and Yo will deliver the daily roundup of news that matters now. For those with an ...