Meta's AI companion Muse reached 10.2 million U.S. downloads within 40 days of its September launch, making it only the 12th mobile app ever to hit that threshold in that timeframe, according to Sensor Tower data reported by TechCrunch1,2.
Global downloads totaled 10.9 million, with the U.S. accounting for the overwhelming majority. Sensor Tower Senior Insights Analyst Kara Lee said only 11 other apps had previously reached the milestone. The most recent was Meta's own Threads in July 2023.
The prior members of the 10-million-in-40-days cohort were largely mobile games, including Fortnite, PUBG Mobile, and Pokémon GO. Outside gaming, only Threads and Disney+ had cleared the bar before Muse. Muse is the first AI-native app to join the list.
The download velocity reflects Meta's cross-platform distribution advantage. Threads was built on Instagram's social graph and integrated into both Facebook and Instagram; Muse benefits from similar promotion across Meta's family of apps, which now counts 3.6 billion daily active users.
Meta is also spending heavily on paid acquisition. Sensor Tower data shows Meta allocated 39% of its total advertising spend to Muse marketing in October, up from 23% in September. Muse now ranks as the 21st-largest brand in the U.S. by advertising impressions.
The milestone arrives one day after Meta published a technical account of Prometheus, its gigawatt-scale AI supercluster in New Albany, Ohio, confirming the facility's first phase was used to train the Muse family of foundational models[3].
ANALYSIS The rapid download ramp demonstrates that Meta's owned-audience flywheel, the same mechanism that propelled Threads into the exclusive cohort, can be redeployed for AI products. The rising share of ad budget devoted to Muse, from 23% to 39% of Meta's total spend in a single month, indicates the company is treating the app as a top corporate priority rather than an experiment.