NetSpot - NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting
Cast Your Vote - Cast Your Vote is an app that allows you to set polls and a voting system and know the answer to your question.
inSSIDer - inSSIDer Essential makes it easy to maintain small business WiFi.
Pollie - Create polls and share them via your favourite tools
Kismet - Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
Right2Vote - Right2Vote is an e-voting app that lets you create and manage polls or election campaigns.