RM Tunnel is a free VPN developed by SDK Tunnel for Android devices. It provides a secure and personalized connection through a VPN proxy. RM Tunnel allows users to connect to multiple protocols, including TCP and UDP ports. The app also offers a feature to export and import beta versions.

With RM Tunnel, users can customize their connection settings according to their preferences. The app provides a secure connection through a VPN proxy, which ensures that the user's data is encrypted and protected from prying eyes. The app's interface is user-friendly and easy to navigate, making it accessible to users of all skill levels.

Overall, RM Tunnel is a reliable and versatile VPN that offers a secure and customizable connection for Android users. It is an excellent option for those looking for a VPN that can connect to multiple protocols and offers a personalized connection.