Yo App

By Chris Morris

PHILADELPHIA (CBS) -- On today's APP-tastic and outta SITE - Yo.

If you're looking for a quick way to let someone know you're thinking of them, Yo. is certainly the app to do it. The app, which sends a text and audio message saying simply "Yo" isn't meant to be a complex communication tool. It's meant to let you tell someone you're thinking of them -- or as a quick check-in. Silly? Yep. Stupid? Arguably. But it's addictive nonetheless.

 Check out the Yo app.