HopCount is a network diagnostic application for Android, built for engineers, systems administrators, and developers who need a usable toolkit on a phone rather than a simplified one. It brings terminal style tooling to a mobile device and keeps the output in the form somebody experienced would expect to read.
The interface is deliberately plain. A target is entered, an operation is selected, and results stream in the way a terminal would print them, which removes the layer of interpretation most mobile network tools insert between the measurement and the reader. Beyond ping, traceroute, and DNS lookups it covers MTR style path analysis, port scanning, certificate inspection, and BGP information, so a single session can move from reachability through path behaviour to the state of the routing that produced it. Continuous monitors record results over time with historical graphs, diagnostic playbooks run the sequence appropriate to a common scenario rather than requiring each step to be issued individually, and subnet and variable length mask calculators sit alongside the measurements rather than in a separate application. Session history is searchable and any previous run can be repeated, which matters when the question is whether something changed rather than what it currently is. Verdicts account for distance, so a link measured across an ocean is assessed against what that path should look like rather than against a fixed threshold that would mark it degraded.
There are no accounts and no analytics, network calls go only to the targets being tested, and everything else remains on the device. Backups export as an encrypted file that can be restored elsewhere with a password, which is the only route by which data leaves at all.
Link: HopCount on Google Play