WiFi Map - A crowdsourced list of routers and passwords
Instabridge - Crowdsourced free wifi (now on Android)
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Wirepool - Crowdsourced WiFi passwords for everyone 📶
Wiffy - Alexa, ask wiffy what the wifi password is
WifiMapper - Find free WiFi anywhere in the world