Muse Launches in Japan, Its First Market Outside North America
The official @Muse X account announced the expansion Thursday evening with a Japanese-language post pointing users to muse.ai; Apple's App Store already lists the app in Japan with a fully localized store page.

Meta’s personal AI agent Muse is now available in Japan, the first market outside the United States and Canada to get it. The announcement came Thursday evening from the official @Muse X account, which posted “こんにちは日本!” (hello, Japan) followed by a playful line in English: “I came to eat sashimi and assist you in your everyday tasks… and I’m all out of sashimi.” The post links to muse.ai and carries a Japanese flag emoji.
The listing is already live: Apple’s public iTunes lookup API returns “Muse from Meta,” sold by Meta Platforms, Inc., for the Japan storefront, with a fully localized Japanese-language store description, Japanese screenshots, and a free price. The app page loads at apps.apple.com/jp/app/muse-from-meta/id6760173601.
Japan is the third country for Muse, which launched September 8 in the US and reached Canada on September 18 with a similar X announcement (“Made it to Canada. Where to next?”). Nothing had been added since. An independent check of 156 country App Store storefronts on October 5 found the app in only three: the US, Canada, and Saint Kitts and Nevis, an unexplained quirk Meta has never addressed.
Why Japan Matters
Muse’s rollout has been narrow compared with its rivals. ChatGPT reached Japan, Brazil, and Germany from day one; Muse spent its first six weeks confined to North America while Meta said nothing about international timelines. Japan is a heavyweight consumer market for mobile apps, and a fully localized store page suggests a genuine push rather than a quiet test.
The expansion also lands just as Meta moves to monetize the agent. On Wednesday’s earnings call, CEO Mark Zuckerberg said more than 10 million people have set up Muse in the US and Canada, and that Meta intends to start charging sooner than usual because the agent is expensive to run. Every new market widens the base for the subscription tiers and commerce fees he described.
What to Watch Next
Meta’s newsroom launch announcement still says only that Muse is “rolling out in the US on iOS, Android, and muse.ai,” per its last update on September 30. The company has yet to publish a formal Japan announcement, and it is unclear whether subscriptions, pricing, and the full feature set carry over in yen-denominated Japan. Past experience suggests checking the ground truth: outside the US and Canada, sign-in has enforced the region block even where muse.ai loads fine, so the App Store listing is the launch, and account behavior is the confirmation to watch.


