Meta’s Muse Hit No.1 on the App Store in Ten Days…

Meta’s AI agent app Muse reached the No. 1 position on Apple’s US free iPhone chart on 18 September 2026, ten days after launch, accumulating roughly 730,000 downloads in that window according to Sensor Tower estimates. The figure edges past the approximately 697,000 US downloads OpenAI’s ChatGPT recorded in its first eight days after launch in 2023, though the comparison windows differ by two days.

No. 1 in Ten Days and the ChatGPT Benchmark

Muse launched on 8 September across iOS, Android, the web at muse.ai, and WhatsApp. Early traction was modest: Sensor Tower data showed roughly 83,000 US iOS downloads in the first two days, or about 41,000 per day. Downloads accelerated in the second week, pushing Muse past ChatGPT on the free-app chart by 18 September, and a Mac version launched on 17 September. ChatGPT averaged roughly 87,000 daily US downloads over its first eight days in 2023, a period when standalone AI apps were still a novelty. The approximately 697,000 US downloads figure comes from data.ai, rather than Sensor Tower.Meta’s own earlier AI app attracted 707,000 downloads in its first five days, while its social app Threads pulled 4.3 million on day one. Muse’s pace trails both, with roughly 730,000 downloads accumulated over 10 days.

An Agent That Acts, Not Just Chats

Muse functions as a personal AI agent that can complete multi-step tasks and continue running after users close the app. Capabilities include sending emails, booking trips, opening web browsers, filling out forms, and negotiating on behalf of users. On Mac, it connects to files, messages, calendars, notes, and mail. The approach differs from OpenAI and Anthropic, which have embedded agentic features into their existing chat interfaces rather than shipping a standalone agent app.The free tier offers roughly 100 million tokens per week. A Power plan costs $20 per month on iOS ($16 on the web) for 500 million tokens per week, and a Maximum plan costs $100 per month on iOS ($80 on the web) for three billion tokens per week.

Where Rivals Rank and What Connect Could Add

At the time Muse hit No. 1, Google’s Gemini ranked eighth on the US free iPhone chart, Anthropic’s Claude ranked 13th, SpaceX’s Grok sat at 32nd, and Microsoft Copilot ranked 64th. The gap between Muse and Gemini highlights the difference in their positions on the US free iPhone chart.An Oppenheimer and Co. survey of 1,500 US consumers found that only 8% would trust Meta with passwords for an AI agent, compared with 30% for Google, 23% for Apple, and 16% for ChatGPT. A full 58% said they would not trust any AI agent with credentials. The trust gap suggests Muse’s early chart position rests on curiosity more than entrenchment. Meta Connect runs from 23 to 24 September.Wall Street analysts hold a Strong Buy consensus on Meta with 38 Buy ratings against six Holds and an average price target of $759.43, implying roughly 13% upside. Whether Muse evolves from a chart-topper into a durable revenue line depends on retention after the novelty period, a metric the next earnings call should begin to clarify.