Hotel Wifi Test - Choose your hotel by the quality of their WiFi
WiFi Map - A crowdsourced list of routers and passwords
FLIO - The global airport app - Free wifi access, discounts & tips
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Wi-Fi Widget - See, test, and share your wifi without unlocking your iPhone
Instabridge - Crowdsourced free wifi (now on Android)