But as long as the power isn't out and wifi is working and the freezer is working and the linux stack in the freezer is working and the app stack atop the linux

But as long as the power isn't out and wifi is working and the freezer is working and the linux stack in the freezer is working and the app stack atop the linux stack in the freezer is working and the app can connect to the server which is working and the company hasn't gone bankrupt and that server still exists and the OP's wife's phone has battery and the OP's wife's phone has connectivity and the client app on the OP's wife's phone can connect to the server and the ongoing cold digital war hasn't caused a nationwide internet outage, I fail to see how the penny and pot is preferable to the convenience of the app.