PortTracker

PortTracker is a fast, self-contained network diagnostics toolkit designed for developers, sysadmins, and power users. It lets you scan open ports, discover devices on your local network, measure latency, resolve DNS records, and calculate subnets — all in one clean, dark-themed app. The port scanner uses real TCP connections to detect whether ports are open, closed, or filtered, and it recognizes 40+ common services with convenient scan profiles. You can sweep your subnet to find active devices, view their hostnames, and jump directly into a port scan with a single tap. PortTracker also includes a lightweight ping tool, forward and reverse DNS lookup, a subnet calculator, and saved hosts with alert notifications for port changes. Built with privacy in mind, every feature runs entirely on your device, and no data is ever sent to external servers. Privacy Policy Link: https://docs.google.com/document/d/1ytktiMx-5M7LJMQeM6HgxcWT0kf237HkgDa-VxLENfU/edit?tab=t.0 Terms of Use Link: https://docs.google.com/document/d/1ytktiMx-5M7LJMQeM6HgxcWT0kf237HkgDa-VxLENfU/edit?tab=t.jl1j8t7k3yfk