Now I get it: Snapchat

Word has it that Snap, the company that makes Snapchat, is planning to go public. If so, it’ll be the biggest initial public offering by a tech company in two years.

I don’t use Snapchat. And no wonder: Most people who use it are under 25, and the company said in 2013 that 70% of its users are women. I’m neither.

At the same time, I’ve been dying to understand Snapchat. I mean, it’s a major cultural force: 150 million people use it each day. The company has yet to turn a profit, but it turned down Facebook’s offer of $3 billion; the IPO it’s working on would value it at $25 billion.

So I decided to dive in, to talk to people, to pound on this app until I finally understood it. Here, for the benefit of people who don’t understand Snapchat, is what I discovered.

First, you need to know that Snapchat is really three apps crammed in one.

Function 1: Self-destructing messages

Snapchat’s primary (and most famous) feature is that it lets you send self-erasing photos to people. To be more precise, it lets you snap a picture or record a 10-second video, dress it up with funny overlays, type and format a caption, draw on it with your finger if you like, and then send it to specified friends. Once they’ve seen your snap, it disappears forever. Not even the company can get it back.

You can also post snaps publicly to all of your followers on a timeline (here called your Story), à la Facebook or Instagram; the difference is that whatever you post on Snapchat vanishes after 24 hours.

For non-teenagers, the whole concept is a little bizarre. Why would you take photos and videos knowing they’ll disappear after one viewing? Isn’t the whole purpose of photos and videos to capture cherished memories to be viewed years from now?

Here’s my theory: Deep down, Snapchat’s appeal has to do with teenage insecurity.

Usually, what you post online is there forever. It can come back to haunt you. Everything on Facebook, Twitter, Instagram, the web, text messages, email — it will always be there for people to judge you. Your parents might see it. A college admissions officer. A prospective employer.

But Snapchat takes the pressure off. If your snap is goofy or badly framed or embarrassing or incriminating — you don’t care! Post it anyway. No employer or principal or parent will ever find it and disapprove.

Furthermore, there are no comments, no Like buttons, no counts of how many friends you have. No judgment.

All of this gives Snapchat an honesty, an authenticity, an immediacy the other social media apps lack — and that millennials love.

The screenshot loophole

It is true, by the way, that if someone sends you a snap, you can take a screenshot of it before it disappears, thereby preserving it forever and, presumably, defeating the whole purpose of Snapchat. (To take a screenshot on the iPhone, you press the sleep and Home buttons at the same time; on most Android phones, you press the volume-down and Home buttons.)