Hey guys, I've made a proper web-based chat app with free resources where the user actually can interact with another user in private, create and chat in a group, or join the global chat of this app. It's called SecreChat. I made this app in a week, so only essential features are available.
SecreChat is useful if you want to have an online chat secretly because it's web-based. For the chat connection, I used polling method instead of websocket because it's cheap and fast on a free server. The source code is open on GitHub. Check out the app now.