Bluesky’s monthly active users drop 52% from late-2024 peak to 10.4 million in June 2026

Bluesky’s user base decline is stark: monthly active users on its mobile app have halved since late 2024, settling at 10.4 million in June 2026. The drop suggests that the platform’s post-election surge was temporary, with many users either returning to other networks or disengaging entirely. For engineers, this highlights the challenge of retaining users in a competitive social media landscape, even with a decentralized architecture. The data also underscores that protocol adoption alone does not guarantee platform success if the user experience fails to evolve or differentiate meaningfully.

The decline in daily active users, down 25.6% year-over-year in July 2026, points to a broader issue of engagement, not just acquisition. While Bluesky’s stickiness rate (daily-to-monthly active users) remains comparable to Threads at 29%, the absolute numbers reveal a shrinking core audience. This matters for developers building on AT Proto, as a dwindling user base may reduce the incentive to invest in third-party integrations or tools. The shift toward private data and AI-powered features like Attie indicates Bluesky is pivoting, but these changes have yet to reverse the trend.

Bluesky’s strategy now appears to prioritize the AT Proto protocol over its own app, with projects like BlackSky and Skylight leveraging the underlying technology. This approach mirrors earlier decentralized efforts, where the protocol’s success outlasted the original platform. However, the material does not show whether these third-party apps are gaining traction at scale. For engineers, the takeaway is that protocol adoption can diversify risk, but it requires a critical mass of apps and users to sustain momentum. Without it, Bluesky’s decline may continue, even as its protocol finds new use cases.