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Meta's Muse becomes the top US free app as Amazon blocks its agent

TechgainAuthor

6 min read · 22 September 2026

Meta's personal AI agent Muse climbed to the top of Apple's US App Store less than two weeks after launch — and in the same news cycle Amazon started blocking it, while a researcher disclosed a serious zero-day in its macOS app.

The short version

Muse hit No. 1 among free iPhone apps in the US
Amazon now blocks Muse from shopping on its site
Amazon cites credentials and lack of disclosure
A researcher says a local app can steal Muse's login token
Shopify says it will support Muse checkout

Sources (5)

about.fb.com/news/2026/09/introducing-muse-personal-ai-agent
www.geekwire.com/2026/amazon-blocks-metas-muse-ai-assistant-in-new-standoff-over-agentic-shopping
www.theregister.com/ai-and-ml/2026/09/21/amazon-shows-metas-muse-ai-shopping-agent-the-door/5297777
arstechnica.com/security/2026/09/muse-metas-extraordinarily-privileged-ai-assistant-has-a-serious-0-day
techstartups.com/2026/09/21/metas-muse-ai-agent-overtakes-chatgpt-claude-and-grok-to-become-no-1-free-app-in-u-s

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Meta's Muse becomes the top US free app as Amazon blocks its agent

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