Domotix is the app that helps you monitor and control your domoticz (http://www.domoticz.com) server.
The app shows you statistics on your utility sensors, lets you control your switches, dimmers and even RGB (colored) lamps. You can also activate scenes and turn groups on and off. Domotix shows information from your sensors and lets you define a geofence around your home.
The app has two so-called extensions. By swiping down from the top of your iPhone screen you get direct access to your favorite switches and your scenes.
The price of the app is less than the average hardware component in your home automation network and the revenue will be used to support the further development of the app as well as the domoticz initiative.