Meta quietly dropped a new app called Forum onto the iOS App Store around May 22, and Reddit investors felt the tremor almost instantly. Shares of Reddit (RDDT) slid roughly 6% over May 22-23 as the market digested what amounts to a direct challenge from one of the largest tech companies on the planet to Reddit’s core business: online community discussion.

Forum essentially takes Facebook Groups and repackages them into a standalone, searchable platform built for deeper conversations.

What Forum actually does

The app was first spotted by analyst Matt Navarra in the Apple App Store, not through any formal Meta announcement. Meta is treating this as a testing product, currently limited to the United States.

Users get pseudonymous usernames, a feature that mirrors the anonymity Reddit users have enjoyed for nearly two decades. But there’s a twist: group admins can still access real identities for moderation purposes.