WiFi Map - A crowdsourced list of routers and passwords
Power Toggles - An advanced power control widget for both your homescreen and notification panel. Free without ads.
WifiMapper - Find free WiFi anywhere in the world
Do Not Disturb Toggle - Do Not Disturb Toggle allows you to switch on and off your phone to automatically mute incoming calls and notifications.
Instabridge - Crowdsourced free wifi (now on Android)
Quick Settings - Your dedicated Android expert remotely or on-site. Technical advisory, creating and reviewing software architecture, Android development, code reviews and trainings.