Meta's Muse tops app charts weeks after launch

The product is currently rolling out in the U.S. on iOS, Android and muse.ai. Meta says most use is free, with subscription plans for people who need higher limits. The company has also said Muse is coming to its AI glasses.

Early chart success does not establish how many people will keep using the service or pay for it. It does, however, put a large consumer audience in front of the practical tradeoff at the center of AI agents: the more useful they become, the more permission and personal context they need.

Amazon draws a boundary

That tradeoff is already producing friction. Axios reported that Amazon blocked Muse from browsing and buying products on its platform. Amazon said it had not authorized the agent to access customer accounts, scrape data or process transactions, and cited security and customer-experience concerns.

The dispute shows that an agent's capabilities depend not only on its model and interface, but also on whether outside services allow it to operate. Other retailers are taking a more cooperative approach, but control of the customer relationship, purchase data and checkout experience remains unsettled.

Meta shares closed more than 11% higher on September 21 as Muse rose through the charts, Axios reported. The stock move reflected investor enthusiasm, not proof that downloads will turn into durable usage or revenue. Retention, paid adoption and the number of services willing to work with Muse will be the more useful tests.