GO BULL uses the Android system API VpnService to create a device-level VPN tunnel. This is the app's primary function: when you tap "Connect," the app establishes an encrypted connection to the Go Bull server and routes the device's network traffic through it, protecting data on untrusted networks and providing internet access through a different location. VpnService is required to intercept and route system traffic; without it, the app cannot perform its functions. The app does not use VpnService to collect user data, block or replace ads, or redirect traffic for any purpose other than the user-initiated VPN connection.
Clean, intuitive interface