PRIVACY / UPDATED OCTOBER 29, 2026

Privacy note

AmiYunting is a static promotional website with local math demos. It has no account system, payment flow, contact form, analytics or advertising trackers.

What stays in your browser

When you explicitly choose a language, we try to save “en” or “zh” under the localStorage key “amiyunting-language”. This preference has no automatic expiry and stays until you clear site data. If storage is unavailable, the switch still works for the current page. Slider values live only in page memory, reset on reload and are not transmitted.

What the hosting provider receives

When the public site is hosted on Cloudflare Pages, your browser sends ordinary web requests to Cloudflare. These can include your IP address, requested URL, browser information and request time. Cloudflare may process request and security logs under its own policies and configuration. We do not set a retention period for those provider-controlled logs or claim that hosting is log-free.

If you email us

Email links open your email application. If you send a message, the recipient mailbox and email providers process your email address, message and any attachments so we can read and respond. We do not request sensitive personal information. You may email us to request deletion of correspondence we control; provider-managed backups or legal obligations may limit immediate deletion. No automatic retention period is promised.

Your choices

You can clear your browser’s site data to remove the saved language, explore without emailing us, or use the downloaded site locally without making hosting requests. No demo sends prompts to an AI service.

Questions about this note: admin@amiyunting.com