Market2026-09-30

Meta’s Muse AI assistant passed 5 million downloads in the US and Canada. It held the top free app spot in the US App Store for 12 days. Muse reached the milestone faster than ChatGPT, Grok and Claude. It is available on iOS and Android but only in the US and Canada. Meta ramped up advertising spend for Muse on September 16, 2026. Downloads spiked 73% the same day. Muse took up to 50% of Meta’s daily house ad impressions over two weeks. It ranked among the top 15 brands by US ad impressions that week. Only 23 apps have hit 5 million US downloads within 22 days of launch. Most of those were mobile games.

What changed

Muse had fewer than 5 million downloads.

What it unlocks

Reaching a large user base quickly through aggressive advertising.

  • 5 million downloads in 22 days
  • 73% daily download spike
  • 50% of Meta house ad impressions

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