How to use YouNow, the livestreaming app that teens are obsessed with

There's no shortage of livestreaming apps, but there's one that teens are clamoring to: YouNow.

YouNow's founder, Adi Sideman, told us earlier this year that 70% of YouNow's users are under the age of 24 and that the platform has 100 million user sessions a month, with about 150,000 broadcasts daily. It's the 34th most popular social networking app in the world right now, according to App Annie.

The four-year-old streaming startup also recently raised a $15 million round of funding.

The interaction between performers and their audiences is what sets YouNow apart from other buzzy livestreaming services such as Periscope or Meerkat. The average mobile session length on YouNow is about six minutes. The average mobile broadcast length is about 18 minutes.

If you still can't quite wrap your head around what YouNow is, Sideman put it best:

"It's a global platform for self-expression," he said. "It's like YouTube, but live. The secret sauce is that it's all about the audience. And the audience feels like even though it's a one-to-many, it feels like a one-to-one interaction."

We've put together a quick guide on how to use YouNow. It's fairly straightforward and intuitive - moreso than apps like Snapchat - but it's still riddled with nuances a first-time user wouldn't necessarily pick up on.