Meta’s Muse launched September 8, 2026. In the 12 days that followed, it pulled 1.8 million iOS downloads across the U.S. and Canada, according to TechCrunch. ChatGPT managed 1.3 million at the same point in its launch.
But the same week those download numbers made headlines, Amazon pulled the plug. Muse users got a blunt error: “Continued access by an unauthorized AI agent violates Amazon’s Conditions of Use, to which our customers have agreed.”
The download story and the Amazon story look separate. They are the same story.
What Muse Is
Meta describes Muse as “a secure, private personal AI agent that proactively helps with people’s goals.” That framing is intentional. Muse is not positioned as a chatbot that answers questions. It is an agent that goes out and does things.
The app runs on Muse Secure VM, a dedicated virtual machine. It is powered by Muse Spark, which Meta calls its “most capable model to date, built for real-world agentic work.”
In practice, Muse can send emails, book travel, open browsers, fill out forms, and negotiate on a user’s behalf. It continues working after the app is closed. It learns user preferences over time and converts saved content into actionable items — a recipe reel — without waiting to be asked.
Meta says Muse requests user approval before sensitive actions, including sending emails or making purchases. Conversations are not shared with Meta’s ad systems. The company has also announced a forthcoming Muse Confidential VM with encryption only users control.
Payment goes through Stripe’s Link checkout. Shop Pay integration is coming. Basic use is free. Subscription tiers exist for users who need more.
Muse is available on iOS, Android, and muse.ai, currently in the U.S.
The Download Picture
1.8 million iOS downloads in 12 days, U.S. and Canada only. TechCrunch reports that figure against ChatGPT’s 1.3 million at the same stage.
The raw installs are one thing. The daily active user numbers are another. TechCrunch reports 642,000 daily active users for Muse in the U.S. at that point, versus ChatGPT’s 231,000 at a comparable stage. Day-over-day download growth ran at 55% for Muse against 24% for ChatGPT. Globally, Muse hit 2.8 million total installs across iOS and Android in those first 12 days. The app climbed from number two to number one on the U.S. App Store, overtaking ChatGPT.
One number deserves scrutiny here. TechCrunch reports that over 95% of Muse users already use Facebook, and 63% use Instagram. Meta didn’t build an audience for Muse from scratch. It distributed Muse into an existing base of billions.
That context doesn’t shrink the numbers. It explains them. The real question for Muse is retention, not installation. Day one downloads built on social cross-promotion are easy. Keeping users engaged past week one, in a category where ChatGPT and Google Gemini are already habits, is harder.
The Amazon Block
TechCrunch reported on September 21 that Amazon had blocked Muse from operating on its platform. The error message, first surfaced by GeekWire: “Continued access by an unauthorized AI agent violates Amazon’s Conditions of Use, to which our customers have agreed.”
Amazon cited terms of service. The competitive logic goes further than that.
When a user delegates shopping decisions to an AI agent, that agent responds to the user’s stated objective rather than a sponsored listing. The ad model breaks.
Amazon also operates its own foundation models and inference platforms, TechCrunch notes. The competitive incentive to host a rival AI agent’s traffic runs in the wrong direction entirely.
The two companies are partners in significant areas. They are now on opposite sides of this one.
The competitive picture has already shifted in response. Walmart and Shopify have integrated with Muse, according to Motley Fool. Amazon has not. Muse can shop for users on two of Amazon’s largest e-commerce rivals. It cannot shop on Amazon itself.
What This Signals
Some of that is Meta’s distribution machine. Some of it reflects real appetite for a personal agent, not just a chat interface. TechCrunch describes Muse as offering a “polished design and highly capable AI model,” with upcoming features including video chat with an avatar, computer use on Mac, a dedicated email address, and smart glasses integration (Source).
The Amazon conflict is a different kind of signal. An AI agent that takes actions, rather than one that answers questions, puts AI companies in direct conflict with the platforms that monetize attention and purchasing behavior. Amazon blocked Muse in the same week Muse was dominating App Store charts. That timing reflects a structural pressure: as AI agents become genuinely capable of acting across the web, the platforms that depend on controlling how users discover and buy things have to decide whether to accommodate them or block them.
Amazon chose to block. Walmart and Shopify chose to integrate.
That split will define how useful AI agents are in practice over the next few years. Not the model quality. Not the interface. The access deals.
For more on how Muse fits into the broader AI assistant field, see our best AI personal assistants roundup for 2026 and our guide to the best ChatGPT alternatives.