Meta’s Muse Overtakes ChatGPT as #1 iOS App – and the Market Just Priced In the Agent-Native Consumer Shift

Meta's Muse application secured 730,000 downloads in its first five days, a velocity that pushed it past ChatGPT to become the number one free iOS app in the United States on September 18. By September 21, the platform reached 2.5 million cumulative downloads, split between 1.5 million on iOS and 1.1 million on Android. This adoption trajectory highlights the transition of agentic workflows from developer-centric tools to consumer-facing utilities. While ChatGPT recorded 3.1 million downloads in the same 13-day window, Muse's initial velocity outpaced other recent entrants, with Claude reaching 400,000 downloads and Grok securing 200,000 in the same period, according to Sensor Tower data. The market response was immediate.