Privacy Policy

Effective 2026-11-01 · Shanghai JingRuiKang Technology Co., Ltd.

The short version

We collect as little as technically possible. Our apps make no network calls and contain no analytics, ads or trackers. This website stores only what you deliberately type into a form.

What this website stores

• Contact form: the name, email and message you type, stored so the developer can read and reply.
• Orders: your email, the last digits of your Alipay account (for matching your transfer), and your order status. Payment is handled by Alipay — we never see your full account number, password or card details.
• Anti-abuse hashes: a SHA-256 hash of your IP address and user agent, used only for rate limiting. The raw values are never stored and cannot be reversed.
• Download counts: an anonymous per-download tally with no personal identifiers.

What we never do

• No third-party analytics, ad networks or social trackers
• No cookies on public pages (only a session cookie for the site administrator)
• No selling or sharing of any data with anyone
• No profiling or cross-site tracking

Data retention

Messages are kept while they remain useful for support. Order records are kept for accounting. You may request deletion of your data at any time via the contact form or service@jingruikang.com.

Contact

Shanghai JingRuiKang Technology Co., Ltd. · service@jingruikang.com