Quattro VPN for Android

Quattro VPN is a sophisticated Android application designed for managing proxy and VPN configurations using the V2Ray core. It supports various protocols, including VLESS, VMess, Trojan, Shadowsocks, and SOCKS, allowing users to import server links or QR codes for easy setup. The app features real-time server speed and latency testing, which is crucial for verifying connection quality before engaging in sensitive online activities. With a minimalist, ad-free interface, it caters to advanced users who prioritize privacy and control over their connections.

The application is tailored for users with technical expertise, as it requires knowledge of proxy protocols to operate effectively. It allows for deep configuration management, including automatic updates for imported lists and split-tunneling options for per-app routing. While it does not provide built-in servers, it enables users to maintain their own server configurations and ensures privacy by avoiding ads and trackers. Overall, Quattro VPN is a powerful tool for those who need advanced control over their online connections.