Ten Codes is a free Android application developed by Pat Burgess which aims to help First Responders interpret radio communications quickly and easily. The application is self-contained and can work without any additional permissions or phone signal. It interprets ten codes and signal codes used by law enforcement into common language. The intended users of this application are the EMS community.

The application is designed to be consistent with the ten codes and signals published on the developer's website. If the codes do not match with the user's department, the developer has provided an option to send the department's codes to and they will try to make a version of Ten Codes for the department.

Overall, Ten Codes is a simple yet useful tool for First Responders in the EMS community. It is easy to use and does not require any additional permissions, making it a convenient option to have on hand during emergencies.