Pebble, a Twitter alternative previously known as T2, is shutting down in October 2023. The social media startup, which had grown a small but engaged community, failed to gain sufficient traction in a crowded market for microblogging platforms. The app maxed out at only 3,000 daily active users out of 20,000 registered accounts, with usage declining further after a rebrand. Facing intense competition from rivals like Mastodon, Bluesky, and Meta's Threads, the company cited the enduring network effect of X (formerly Twitter) and a faster-than-expected evolution of the competitive landscape as key reasons for its closure. The shutdown represents an early casualty among the many emerging alternatives to X.