RPB Tunnel VPN is a free VPN application developed by CNS Technologies Inc. for Android devices. The app aims to provide users with a simple VPN service that allows them to access content securely and privately.

The app has a straightforward user interface and supports both light and dark themes. It also offers SSH, SSL, and Websocket protocols, giving users flexibility in their VPN connection. Additionally, RPB Tunnel VPN allows users to customize their server, payload, and tweak settings.

Users can earn more time by watching ads, and the app boasts high-speed servers powered by Digital Ocean VPS. RPB Tunnel VPN also includes payloads and tweaks for different networks, including Globe/TM, Smart, Sun, TNT, and more. The app contains advertisements, but the revenue generated from them helps to keep the service free and unlimited.