Police Scanner Free is a mobile application that allows users to listen to live audio from thousands of fire, EMS, and police scanners. The app provides features such as the ability to view scanners located nearest to the user, view the top 50 scanners with the most listeners, and find stations located in each state. Users can also save their favorite stations for later usage and listen to the last played station. The app also provides alerts about crime, fire, emergency alerts, EMS, or police activity. In addition, the app includes an in-app police, emergency alerts, and fire alarm codes alphabet to help citizens understand what situation the police are referring to without any training.

The app is a combination of live audio streams including local police scanner, fire alarm, emergency alerts, EMS scanners, and amateur radio. Users can instantly connect with live broadcast stations and browse through thousands of scanner radio feeds from all over the United States. The app provides real-time updated statistics for all live audio feeds from Broadcastify free. Users can discover the live police scanner free, fire alarm, emergency alerts, free police and fire scanner, and amateur radios. The app keeps users updated about the local news, emergency alerts, and public safety affairs near them.

The audio provided by the app is the same audio that users would hear using their own police radar. The app is free to use and provides 50 most listened Live Police Scanner Radio channels that change dynamically with listener numbers. Users can receive alerts and know about the on-going local activity, emergency alarms, fire alarm, and various types of alert emergencies happening right now. The app also allows users to record police radio broadcasts for later usage and export/listen to saved records whenever they want.

The app requires the "Location" permission to determine what scanners are located in the user's area when they select "Nearby Scanners." The app first attempts to determine the user's location via the network, and if that fails, it then tries to determine the user's location via GPS. Overall, Police Scanner Free is a useful app for those who want to stay informed about emergency alerts, fire alarms, and crime/major events near them.