Network diagnostics / Android
LinkTCP
An Android application that acts as both TCP client and server, to diagnose connections from the device itself, on site.
The problem
When a connection fails in the field, the question is whether the problem is the network, the server or the application. Being able to act as either end from the same device answers that without carrying a laptop to the site.
It came out of a concrete need in the field and stayed in the toolbox.