Port Numbers is an Android application developed by Roman Mbwasi that provides a comprehensive guide to over 1000 port numbers and their applications. This app is a must-have for network administrators and IT professionals who need to identify which applications are using specific ports.

The app contains a searchable database of port numbers, their applications, and the transport protocol used by the application. Additionally, it indicates whether the Port/application combination is registered with IANA. This feature can save a lot of time and effort when troubleshooting network issues.

The descriptions are well-written and informative, making it easy to browse the database and find the information you need. The app is free and easy to use, making it a great resource for anyone who needs to work with port numbers on a regular basis.