We've become so obsessed with it, that it's hard to remember a time when we weren't sending selfies to our friends that weren't plastered in the dog filter.
What did we do with our lives before it? It appears those memories have been erased from our minds, as people didn't have the slightest idea what to do when the app was down and out of action for a couple of hours last night.
As always, people turn to Twitter in times of a crisis. Last night's reactions were incredible.
Here's some of our favourites.
When in doubt, refresh. That didn't help last night though.
Some people got to know family members that have been around for years,but have never met. Cute.
Deleting and re-installing the app did nothing, either. NOTHING PEOPLE.
A problem shared is a problem...solved?
The aftermath has clearly been traumatising for some. Stay strong, everyone.
Who else was slightly traumatised by snapchat going down last night?! Just me? #SnapchatDown— James' Studio (@James_StudioYt) November 7, 2017