Effective April 25, 2026

Sentinel Terms

Sentinel is provided by Guangyu Song to help you monitor and manage network connections on your Mac.

Use

You are responsible for how you use Sentinel, including any allow or block rules you create. Network filtering can affect app connectivity.

No Guarantee

Sentinel is provided as-is. It is not a guarantee that all network traffic, security issues, malware, tracking, or privacy risks will be detected or blocked.

System Permissions

Some features require macOS permissions, including Network Extension approval and optional location permission. You can revoke permissions through macOS settings.

Updates

These terms may be updated as Sentinel changes. Material updates will be reflected on this page.

Contact

Questions about these terms can be sent to sentinel@guangyusong.com.