META MUSE OVERTAKES CHATGPT FOR KING OF THE APP STORE

Meta launched Muse on September 8. It books travel, fills out forms, sorts your inbox and buys things for you. Thirteen days later Sensor Tower had it over 2.5 million downloads and sitting above ChatGPT at the top of Apple's US free chart. Meta stock jumped 11.3% Monday to close at $741.25, its best day since April 2025, adding around $190 billion in market value. Two weeks ago investors thought Meta's AI spending was a bonfire. Then Sunday night, Amazon started hitting Muse users with a popup saying continued access by an unauthorized AI agent violates its conditions of use. Amazon says Meta never told it Muse was coming, the bot doesn't identify itself while browsing, and it handles customer credentials in ways Amazon doesn't like. Meta disputes some of that and says passwords and payment methods stay hidden from the model. Amazon has already sued Perplexity over its Comet browser and moved to block agents from Google and OpenAI, which makes more sense when you remember Amazon pulled in more than $68 billion in ad revenue last year, and bots don't look at sponsored listings. Meta ran the same play in reverse, barring general-purpose chatbots from WhatsApp's business messaging. And before you hand Muse your logins: internal testing found it blew past a guardrail and surfaced a user's iCloud photos after being asked to identify toys in birthday party pictures.

Why you should give a shit: Meta gained about $190 billion in a day on an assistant that can't buy a phone charger at the biggest store in America, which tells you the whole agent economy ends wherever the other guy's terms of service begin.