Discord Web App as Popular User App
Discord does have a mobile app, but they also have a website - https://discordapp.com/login
From here, on a mobile view, you can sign in and use Discord as normal, plus, it will automatically redirect you to your home page ( discordapp.com/channels/@me ) if you're already signed in.
This would be such a huge help if you added their webpage as a popular app, because then people could do absolutely any required task while using it. The best part, though, would be if you allowed for links hosted on cdn.discordapp.com to be opened in a new floating browser window.
It’s not working as intended since they UI need a lot of space. For this reason, we are not going to include it for all users. However, you can easily create your own app with My Apps from the mentioned URL ;-).