Earlier quoted context omitted.
"RAM is not really something you explicitly ration." It most certainly is. My old pc ran on 8MB of ram. Modern ones need 16GB for a comfortable experience. They do not do much more than I needed back then. I think it's reasonable to expect a simple chat app to not take up 128 times as much memory as my entire PC had when I was young.
2048 times
I was being generous and assuming the chat app "only" used 1GB of ram.