The platform crossed the milestone last night, and it happened about a month and a half after the 25 million mark. Bluesky still has a long way to go to pass Threads, though; Meta’s platform has more than 100 million daily active users.
[Media: https://bsky.app/profile/bsky.app/post/3lgu4lg6j2k2v]
Mastodon has around 1 million active users³ Bluesky has around 3.5 million active users²
Bluesky doesn’t have a decent way to see active user count, but it is likely higher than 3 million
Mastodon retains 10%, Bluesky retains 10% also, but I can’t confirm it
Edit: Using unique likes, it shows about 2 million active users on each day¹
Source:
Bsky Analytics¹ • Bsky Stats² • Mastodon Analytics³