Fizz IP Relay is a free mobile application developed by viiz Communications. It is designed to cater to the needs of deaf and hard-of-hearing individuals who require relay calls to communicate. The app allows registered IP Relay users to access the service via their Android or iOS smartphones.

The app is easy to use and provides an intuitive interface that enables users to make and receive relay calls with ease. The app is specifically designed to cater to the needs of the deaf and hard-of-hearing community, ensuring that they can communicate with their friends and family without any barriers. The app is a great way to stay connected with the world and is highly recommended for anyone who requires relay calls to communicate.