Open Port Check Tool

This is completely useless.

Not an app, just a web link. Cannot test in local network

It basically just serves as a app-bookmark for http://www.networkappers.com/tools/open-port-checker Now, that's not a bad thing, and it does what it says, but creating an app pointing to their web tool is rather pointless. Instead of creating an app, any user could just log in to their own router (192.168.*.*) and look at "Virtual Servers", and see if any ports are open, and pointing to any local addresses. You don't need any apps or websites to tell you that.