Privacy Policy

This Privacy Policy explains how Kuailian VPN (referred to as the 'Service,' 'we,' or 'us') handles personal information when you download, install, or use our mobile application (the 'App'). We provide the App on a commercial basis and aim to protect privacy through operational controls, limited data use, and the commitments described in this policy.

When you download and launch this App, we may automatically collect operational data necessary to keep the service running, including your Internet Protocol (IP) address, device operating system version, app usage paths, and session duration. To provide more suitable global acceleration services, we may also process approximate device location information. These data are used mainly for: 1. Service delivery: relying on Kuailian VPN's node distribution to recommend appropriate connection paths; 2. Performance optimization: using aggregated and anonymized trend data to improve network stability; 3. Service communication: sending important updates, security notices, or limited promotional information through your reserved email or username. We handle such information only within the compliance framework stated in this policy.

We transmit only aggregated or otherwise limited data to necessary third-party partners (such as Google Play Services and Firebase) for crash analysis, diagnostics, and feature improvement. Except in the following situations, we do not share your personal information with third parties: 1. where required by law, legal process, or mandatory regulatory request; 2. where necessary to protect users, property, or investigate fraud or abuse; 3. where we work with service providers bound by strict confidentiality obligations. If you wish to stop future data collection from the App, you may remove it through your device's standard uninstall process. After uninstallation, no new App-originated data collection events will be generated.

User-provided data may be retained during the service period and for a reasonable grace period thereafter. If you need to close your account early and delete your profile data, please contact our privacy team at support@kuailianfree.org. This App is not intended for children under 13, and we do not knowingly collect information from that age group. If we discover that such data has been collected in error, we will begin deletion procedures without undue delay. Guardians may also contact us through the same email address to request intervention. To protect confidentiality, we maintain layered physical and electronic safeguards designed to reduce unauthorized access risks.

This Privacy Policy may be updated from time to time in response to regulatory requirements, product changes, or operational adjustments. You are encouraged to review this page periodically. Continued use after an updated version is published will be treated as acceptance of the revised terms. This policy takes effect on October 4, 2025. If you have any questions or suggestions regarding our privacy practices, please contact the Kuailian VPN team at support@kuailianfree.org.