Decentralized social network Mastodon is also seeing some uplift from the X “exodus,” founder Eugen Rochko shared on the platform just ahead of the weekend. While the Twitter-like startup Bluesky has been capturing headlines and attention for its rapid adoption among former X users, a smaller group has apparently turned to the open source networking platform Mastodon, which has seen downloads increase by 47% on iOS and its monthly active users grow to 894,000 across all Mastodon servers, Rochko says.