Muse launched on Sept 8, 2026. Appfigures estimated it had reached 1.1 million devices through Friday, Sept. 18, and said it reached #1 on the US App Store on Saturday, Sept. 19, displacing ChatGPT. On Nov 8 it was still #2 on Apple's US Top Free chart.
What Muse is
Meta calls it a personal AI agent. AP reported at launch that it's for people 18 and over, available only in the US for now, and usable in its own app or in WhatsApp. Meta's announcement says it's rolling out in the US on iOS, Android and muse.ai. The App Store rates it 18+, shows 4.9 stars (489K ratings) as of Nov 8, and lists version 14.4, dated Nov 7.
On muse.ai, Meta says each user gets a "Muse Secure VM", an isolated Linux computer with a browser that both you and the agent can use. You approve actions such as sending emails and making purchases before they happen, and there's an audit trail of what the agent has done. For shopping, Meta says a one-time card number is generated at checkout so your real card stays hidden from the merchant and the agent.
Cost
Meta's announcement says Muse is "free for most of what people need, with subscription plans for people who want to do more". The App Store lists in-app purchases but no prices, and Meta's pages don't state any.
Meta's privacy claim and the App Store label
Meta's announcement says Muse "doesn't share a person's conversations or the data in their VM with Meta's ad systems."
The App Store privacy label covers the whole app. Apple shows these labels as the developer's own disclosure. It lists 11 of its 13 linked-data categories, including Browsing History, Search History, User Content and Contacts, for Third-Party Advertising and Developer's Advertising or Marketing. Within those lists, User Content is limited to photos or videos, gameplay content and other user content, and Financial Info to "Other Financial Info". Emails or text messages, audio, payment info, health data and sensitive info aren't on either advertising list; emails or text messages appear only under personalization and app functionality. Neither Meta's announcement nor the label says which advertising-labeled data comes from the agent and which from ordinary app use.
Sources
- Apple — Top Free Applications RSS feed (US) (checked Nov 8, 2026)
- Apple — Muse from Meta on the App Store (checked Nov 8, 2026)
- Appfigures — Meta's New AI Worker Just Knocked ChatGPT From #1 (checked Nov 8, 2026)
- PBS NewsHour (AP) — Meta launches personal AI agent, Muse, to help with everyday tasks (checked Nov 8, 2026)
- Meta Newsroom — Introducing Muse (checked Nov 8, 2026)
- Muse — muse.ai (checked Nov 8, 2026)