What are the differences between the Smartthings, Samsung Connect, and Smarthome apps? Which app do you use for what purpose? What are the benefits of each app? Can you register your Smartthings Hub in more then one app?
Smart Home is the legacy app for Samsung connected devices. Most of those should be moving over to Samsung Connect. SmartThings app is the only place you can use custom device handlers and apps. If you created your SmartThings account after may of this year, its actually a Samsung account. You may be able to login to the Samsung Connect app and use it, but i don’t know if that is officially recommended yet.