If you're going to send one word, it might as well be beer

It’s likely that you’ve already heard of the now-viral app Yo. The app, which was developed by its founder Or Arbel in under 8 hours, allows the user to do one thing—send another user a notification that reads “yo”. If you have your phone on full volume, a male voice also booms “Yo!” through your speakers.

To the surprise of many developers, the app, which launched in April 2014, secured over 1 million downloads and raised $1.5 million in funding. Moreover, Yo inspired several “copycat” one word notification apps, AiYO and Oye!, for your enjoyment and friends’ subsequent annoyance.

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