Insta-lovers have been creating Finstas (or “Fake Instagram” accounts) since the dawn of time. But an upcoming feature called Flipside could legitimize alternative spaces where users with public profiles can post more privately. Here’s everything you need to know about Instagram’s Flipside feature, what it is, and how it compares to the already existing “Close Friends” feature.

Flipside is a new feature that allows Instagram users to create a space that is separate from their official profile. Without having to log in again, they can add a different name, profile photo, and bio, and choose who can see their flipside profile.

The idea is to let users share a more private side of their lives with friends. Users can set their profile to “remove everyone” and start over, if they want. The Flipside profile is distinguished from the main account by the “Key” icon in the bottom right corner of the profile or next to the messages.

Flipside has been in the works for a while now, and it looks like it’s being released to a select few for testing. Interestingly, Threads user girlinwhiteglasses expressed concern about the state of the feature. A test post that wasn’t shared with anyone still got 39 views, highlighting that Flipside still needs some work to make it truly private, which is what Instagram is aiming for.