Meta’s new AI agent app, Muse, has climbed above rivals in the US Apple App Store ranking of free mobile apps, moving ahead of OpenAI’s ChatGPT, Anthropic’s Claude, SpaceXAI’s Grok, as well as Polymarket, Kashi and even Meta AI.
The app was launched at the beginning of the month. It was downloaded 730,000 times in its first five days, and by September 21 total downloads had already surpassed 2.5 million, according to estimates by Sensor Tower analysts.
That is higher than the combined total recorded by Claude and Grok in their first 13 days after launch. Over that period, Claude was downloaded 400,000 times and Grok 200,000 times. For comparison, the ChatGPT app reached 3.1 million downloads over the same timeframe.
The Muse versions for Apple iOS and Google Android were released at different times. Current downloads stand at about 1.5 million on iOS and roughly 1.1 million on Android.
Meta has presented Muse as a consumer tool that lets users direct digital assistants to carry out various online tasks. Those agents can, among other things, fill in electronic forms and work with email.
The AI agent runs on the Muse Spark family of models. The app’s rapid adoption marks a notable win for Meta in the AI agent market, which has been expanding quickly since the arrival of the free OpenClaw.
Against the backdrop of Muse’s success, Meta shares rose 11% the previous day. Some features are available free of charge, but the company plans to introduce paid subscriptions priced at $20 and $100 per month, depending on user needs.
At the same time, the spread of AI agents is raising concerns about privacy and security. Amazon, for example, has barred Muse from use on its commerce platform, citing those risks.
Amazon said it had received no notice from Meta about any intention to conduct transactions in its online store through AI agents. In Amazon’s view, such agents bypass personalization tools and other functions built into the purchasing process and may collect customer login credentials, personal data and other account-related information.
“We believe third-party apps that offer to shop on behalf of customers of other companies should operate transparently and respect service providers’ decisions to participate in that process or decline to participate,” Amazon said.
