Long gone are the days when you were limited to your favorite FM or AM radio station by physical location. And while some apps are backed by big ad budgets, I have three lesser-known free apps that can help you listen to your favorite radio stations just about anywhere. Simple Radio is a free app that gives you access to more than 30,000 FM and AM stations. Whether it’s news, sports, talk, or music, Simple Radio has it. The app also has a sleep timer and a cool feature that allows you to record content and save it for later. The app is free for iOS and Android with paid premium options…