Muse entered the market on September 8 and quickly amassed more than 2.5 million installations within its first week, according to Sensor Tower. The firm’s latest Thursday estimate puts total downloads at roughly 3.4 million. Competing analytics providers report similar momentum, with Apptopia counting about 4.3 million installs,2.6 million on iOS,while Appfigures records around 2.3 million, split evenly between iOS and Android. The app is currently limited to the United States and Canada.
Sensor Tower observed a 27 percent rise in daily active users on the Wednesday after the Meta Connect event concluded, indicating a post-conference surge. In its initial two-week window, the app achieved an estimated 2.8 million downloads and sustained a 55 percent day-over-day growth rate. For comparison, ChatGPT recorded a 24 percent increase during its first ten days, while peer models such as Claude and Grok experienced declining download trends.
The application quickly rose to the summit of the U.S. App Store on September 18 and has maintained that position since. The following day it secured the top slot on Google Play, where it continues to lead. These rankings reflect both rapid user adoption and strong visibility in the primary mobile distribution channels across the two major operating systems.
Meta amplified Muse’s profile at its annual Meta Connect conference, unveiling features such as video-chat avatars, Mac-compatible computer use, a dedicated email address, expanded partner integrations, and plans for smart-glasses connectivity. The company also deployed house ads beginning September 9, a day after launch, and within ten days those promotions dominated Meta’s internal ad inventory ahead of campaigns for Facebook, Instagram and WhatsApp. External placements have appeared on Reddit, TikTok and YouTube, and by September 22 Sensor Tower ranked Muse among the top ten brands by advertising spend.
Despite the heavy promotion, advertising accounted for only about six percent of total ad impressions from launch through September 19, suggesting that organic discovery remains a major driver. Connor Hayes, Meta’s Head of Threads, explained to Business Insider that Muse’s marketing differs from the Threads strategy because the promotions aim to demonstrate specific AI capabilities tailored to individual users rather than relying on broad content-matching algorithms.
Collectively, the data from Sensor Tower, Apptopia and Appfigures confirms that Muse has achieved a level of early traction uncommon among recent AI assistants, especially within the limited North American rollout. Continued feature rollouts, including smart-glasses integration and expanded partner connectors, are poised to sustain user growth, while Meta’s cross-property advertising framework provides a scalable channel for future expansion beyond its current markets.