Meta's Muse Agent App Reaches No. 2 in US App Store, but Lags Its Own Launch Benchmarks

Meta's newest consumer AI product is climbing the charts fast. Muse, the company's standalone AI agent app, is now the second most-downloaded app in the United States, according to app-ranking data reported by TechCrunch. The ranking puts a Meta-built assistant near the top of the domestic download market, even as the company's internal launch comparisons tell a more complicated story.

That complication is the pace of adoption. Muse is drawing installs more slowly than either Meta AI or Threads managed in their own opening stretches, the report notes. Threads, in particular, set a punishing bar: it crossed 100 million sign-ups within days of its July 2023 debut, a surge fueled by Instagram's built-in distribution and a wave of users looking for a Twitter alternative. Meta AI, meanwhile, arrived inside WhatsApp, Instagram, Messenger and Facebook, giving it a reach that a separate app has to earn on its own.

The No. 2 ranking is still a meaningful signal. App Store charts measure velocity, not installed base, so a top-three position means Muse is converting a large volume of new downloads in a short window. For Meta, that matters because the company has spent heavily to position itself as a leader in consumer AI agents — software that can take actions on a user's behalf rather than just answer questions. Getting users to open a dedicated app, rather than stumble into an assistant inside an existing feed, is the harder half of that strategy.

Muse's slower start also reflects a changed market. When Threads launched, it faced a single weakened incumbent in Twitter. Muse arrives into a crowded field of general-purpose assistants from OpenAI, Google, Anthropic and a long tail of startups, plus a growing set of agent-specific apps. Users now have to be persuaded that a new assistant does something their existing chatbot does not, and Meta has not yet published engagement numbers that would show whether Muse clears that bar.

What to watch is retention. A No. 2 download ranking can be bought with a home-screen prompt or a cross-promotion inside Instagram, but daily active use is the metric that decides whether Muse becomes a durable product line or another experiment folded back into Meta's main apps. Meta has not disclosed Muse's user figures, and the company has a history of shipping AI features broadly and then pruning the ones that fail to stick. The next few weeks of chart position — and any engagement data that follows — will show whether this launch has legs.

The launch also lands amid a broader shift in how AI companies distribute software. Standalone apps give vendors direct billing, notification and data relationships, but they forfeit the passive reach of a social feed. Meta is running both plays at once, and Muse's early numbers suggest the standalone route remains the tougher sell even for a company with billions of existing users.