Meta's Muse hits 10M U.S. downloads in 40 days

Meta's AI companion app Muse reached 10.2 million U.S. downloads in its first 40 days, becoming one of only 12 apps to hit this milestone. Its 7-day retention rate is 30%, above the 19% average for rivals like ChatGPT. Meta allocated 39% of its ad spend to promote Muse in October.

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