Popular police scanner applications for Android devices include Scanner Radio by GordonEdwards.net LLC, Police Scanner 5-0 by Critical Hit Software and MyScanner-Police Scanner Radio by Monzonito. As of April 2015, these police, fire and EMS radio scanner apps are free and available on the Google Play Store.
All of these police scanner apps feature live Internet feeds from police, fire and EMS CB radio channels across the United States. Police Scanner 5-0 includes a CB radio lingo guide to help beginning users decipher common terminology and codes used by departments across the country. Scanner Radio features a paid Pro version that includes the ability to record feeds, has no ads and adds lock screen player controls.