Waflee - Provides an effortless way to connect to your Wi-Fi
OpenWiFiSpots - Hotspot location app
Wi-Fi Widget - See, test, and share your wifi without unlocking your iPhone
Wi-Fi Space - Hotspot location app
WiFi Signal - Monitor and troubleshoot your Wi-Fi connection
Lizard Systems WiFi Scanner - Lizard Systems WiFi Scanner is a multi purpose WiFi scanner and WiFi troubleshooting tool designed for dealing with all WiFi related issues conveniently.