According to Similarweb's latest data, Threads and X show an interesting divergence in user engagement patterns across different platforms.

On mobile devices, Threads has managed to pull ahead—iOS and Android combined show 141.5M daily active users versus X's 125M. That's a notable gap, suggesting the younger, mobile-first audience might be gravitating toward the newer platform.

But flip to desktop, and the picture flips hard. X dominates on the web with roughly 145M daily actives, while Threads struggles at just 8.5M. This massive gap highlights a critical weakness: Threads hasn't cracked the web browsing experience yet.

The takeaway? Platform migration isn't binary. Threads is winning the mobile battle but losing the broader desktop ecosystem where serious users, traders, and content consumers spend hours daily. That structural imbalance could matter long-term as the market matures.