I was skeptical at first, but the app actually works. I have a Raspberry Pi 2 with Jessy OS installed. It found my Pi on my local Wifi network. Cayenne setup took about 6 minutes for me. I’m working on projects to monitor temperature outside my home as well as lighting inside. I setup a trigger so when the temperature fails below freezing I’m notified so I can cover the fruit I’m growing in my garden. Both of these projects were easy to setup and get going.
Mr Grooms about Cayenne - IoT Project Builder, v1.1