Over the past week, Bluesky’s growth has exploded, more than doubling to 15 million-plus users as people seek alternatives to X, Facebook and Threads. It has rocketed to the top of Apple’s and Google’s app stores as the most downloaded free app. Its ascent has been so rapid that the company has been forced to grow up practically overnight.

Bluesky is gaining popularity by attracting users from X. According to the social media platform, Bluesky's user base has doubled in the last 90 days, with over a million new users joining in one day alone.