Let’s say I need a new microwave oven, and I have two options: a regular dumb box that heats up my food and goes “ding” at the end or a smart device that relies on a mobile app. I have always selected the dumb option, because I just can’t be sure that the app will continue to work after 5 years. What if the company goes bankrupt or simply decides it’s time for me to buy a new microwave? I want to keep on using that machine as long as it works and mobile apps don’t seem to be compatible with that idea.