WifiMapper is the Wi-Fi access point search tool you wish your phone had natively. The app lets you search any location for available hotspots, and lists helpful tidbits about each Wi-Fi zone, like if it’s free or password protected.
The app comes from the folks at OpenSignal (who already provide a great tool for cellular area coverage) and boasts the world’s largest Wi-Fi database. Best of all, the information is maintained and updated by the apps community (i.e. you and me). So if a free access point suddenly goes dark, you or someone else using the app can make a change to the listing.
And hey, if that’s not enough, WifiMapper also includes Foursquare comments so you can find out more about the hotspot’s establishment. You may just end up with a decent meal in addition to free internet.