There are scanner apps. For example "Scanner Radio" app, when I click on "Near Me".
During emergencies such as bush fires and cyclones mobile phone networks become useless for seeking information on finding a safe haven. Mobile networks are prone to power outages or too many people using the network at once. FM radio is the best alternative in broadcasting emergency information and feel it is absolute necessary to have a fm receiver on all phones. I know, I was caught in a bush fire once. FM radio emergency broadcast network provided directions on where to go to best avoid being surrounded by fire.