I'm completely aware that there are apps that do these. The problem is the network effect. This app is all fine and dandy when you think ahead of time, but humans aren't really good at that (I have a laundry list of examples of us not doing this). So what I'm asking for is companies with a large network effect to leverage that, and their huge capital, to improve their existing products to be resistant to things like power outages and government shutdowns. It should be default, not require people to be proactive.