Privacy notice
Last updated 25 September 2026
This notice covers sumirenokai.com, the website of Sumire Studio. Each of our apps has its own privacy policy, listed at the end.
What this site collects
Nothing. The site has no accounts, forms, advertising or analytics. It sets no cookies of its own and doesn't use your browser's storage.
Hosting
The site is hosted by Cloudflare. To deliver pages and protect the site from abuse, Cloudflare processes each request, including your IP address, browser information and the address of the page. Cloudflare's privacy policy applies to this processing. Cloudflare may show us aggregated statistics, such as the number of requests by country or region. We don't use this information to identify visitors.
If Cloudflare needs to check that a visit isn't automated, it may set its own security cookie, such as cf_clearance. Cloudflare needs this cookie to run the service, and it isn't used to track you.
Language and fonts
English and Chinese are separate pages. The site doesn't pick a language for you and remembers nothing between visits.
Fonts are served from this site, so your browser doesn't contact any other font service.
If you write to hello@sumirenokai.com, we receive your email address and your message and use them only to reply. We delete conversations within 12 months after they end, or sooner if you ask.
Other sites
Links to our app websites, GitHub and xiaonan.dev take you to sites that have their own privacy practices.
App privacy policies
Each app explains what it handles in its own policy:
Contact
Sumire Studio is run by Xiaonan Li in Sydney, Australia. For any question about privacy, write to hello@sumirenokai.com.