Using the data associated with Pages, Facebook’s app is receiving a WiFi finder feature. The social network has been promoting the availability of free WiFi and trying to get businesses to offer it. You can search your area to find free and public WiFi if you give the app location access.
Facebook describes the Find WiFi feature as a “beta” and says it’s in a limited roll out right now. It seems to primarily or entirely exist on iOS for the time being.
No mention of when it’ll be available for everyone globally has been made.