All you need to know it's not a mobile app or web app - it's a bot on Telegram. If you don't have Telegram, you will net to get it, but i personally don't think it is a problem.
Then you have a bot that handles all your settings. I have some experience in Telegram and Discord bots and have to admit a very good quality of this one. It works with inputs and buttons as if it were a standalone application, and gives you areally good UX. I was completely transversed by this approach and will definetely use in my next projects!
