Below are three apps that will help you find free open Wi-Fi networks. The idea of all three apps are the same, they pin point your current location and then on a map show you free open Wi-Fi networks that are close to you. The apps are community based so if you find a Wi-Fi network that is not listed on the app you can add it so the next person that comes along can see and use it. There are other apps in the Play Store that do the same thing if you don’t like the ones below. So give them a try and find which one you like the best.
Free Zone – Free Wi-Fi Scanner - https://play.google.com/store/apps/details?id=net.alouw.alouwCheckin
SpotWiFi: Automate & Spot Wi-Fi - https://play.google.com/store/apps/details?id=com.bandwidthx.spotwifi