Meta's Muse AI tops 10M U.S. downloads in 40 days, beating ChatGPT and rivals

Meta's AI agent Muse surpassed 10 million U.S. downloads within 40 days of its September launch, outpacing rival AI apps like ChatGPT, Claude, and Grok in domestic adoption. Sensor Tower recorded 10.9 million total Muse installs, with 10.2 million from the U.S., while ChatGPT drew 3.7 million American downloads in its first 40 days. Muse retained 30% of users after 7 days and 23% after 14 days, versus rivals' averages of 19% and 16%. Muse launched only in the U.S. and Canada, while ChatGPT reached global markets. Meta increased Muse's share of its ad budget to 39% in October. The app faces privacy concerns, with over 6,800 shared conversation links found publicly, prompting Meta to pause the sharing feature.