Meta’s AI companion, Muse, is now one of only a dozen mobile apps to have reached 10 million U.S. downloads in its first 40 days on the market. According to new data from market intelligence provider Sensor Tower, Muse has seen 10.9 million downloads since its September debut, 10.2 million of which were in the United States. Only 11 other apps to date have reached this type of post-launch milestone, said Sensor Tower’s Senior Insights Analyst Kara Lee. The most recent of these was Meta’s Threads...