This app is available for iOS and Mac. It is designed to fit a hole and simplify home control by aggregating deCONZ and Hue hubs into a single app. This has now been out for over a year and the purchase covers all Apple licensing for iPhones, iPads and Mac.
I have been using it since it original released and have been supporting the development by testing however I am not paid in any way.
HZB doesn’t take a stovepipe approach and It’s agnostic, extremely simple to use and Custom Scenes are global entities. You can use them manually as an independent scene, or you can assign them to rooms. And on a Mac running HzB, you can assign them to a trigger by a sensor or a switch to automate.
HZB also allows the core hub gateway to still use the sensor or switches as they do currently, but you can also assign different Custom Scenes in HZB to expand their use if you have the Mac app.