This iPhone/iPod touch app is a simple app that displays all well known UDP and TCP ports from 1-1023 and when you select a port number the application is displayed.
+iOS 9 compatible update
Ratings and Reviews
I have a great need for an app like this. Unfortunately this one delivers short on what it could do. It needs a search so you can find what port popular protocols use. It also doesn't include popular ones like RDP and other higher ports.
With Family Sharing set up, up to six family members can use this app.