We value your privacy. This is a free tool and all usage data is stored in your browser. We do not collect or store your personal data on our servers. Google ads are shown to support the service.
To provide core features, the site may store your preferences and usage state locally in your browser, such as language and spread selections.
You can clear site data in your browser at any time. This removes local preferences and records. The site remains usable but personalization resets.
We prefer local storage to minimize cookies; however, third parties (e.g., ad services) may use cookies or similar identifiers for essential functionality and analytics.
We use Google ads to keep the site free. Third parties may use cookies or device info for anonymous statistics to improve ad relevance.
For privacy inquiries, email service@qizhixinxi.com and we will respond promptly.