You could argue that the Classic app is better at what it does (but still not great), but what it does is work with ST as it was two years ago. The 'new' app works with ST as it is now and is evolving with it. Once I was finally able to run the new app (no phone or tablet I had met its memory requirements), I switched to it exclusively and completely removed the Classic app, even deleting SHM and Routines. I no longer support the Classic app when I create custom device handlers and am eliminating it from older ones.