App Pick: Yonomi
Stacey Higginbotham's pick on This Week in Google 350 is Yonomi. This makes it possible for all of your internet-of-things devices to communicate together. It works with Nest, WeMo, Withings, Sonos, Philips Hue, Logitech, and many more services and doesn't require a hub. You can also create routines where devices can respond automatically based on your location, time of day, and preferences.
For instance, you could tell the Amazon Echo "I'm Home" and have it turn on the Philips Hue lights, start playing something on your Sonos speakers, and lock your Schlage Connect lock behind you. When you leave, it can have the Logitech Harmony remote turn off the TV, the Nest thermostat will adjust to save energy, and the August Smart Lock will lock the door.