This Community is PWA app, so with Android webbrowser this https://community.vanila.io can be set as App icon like any other Android app. PWA is the latest hot stuff.
For IRC users, there is IRC channel address mentioned somewhere at IRC FAQ for those who really read all of the required reading of IRC FAQ first https://github.com/wekan/wekan/wiki/IRC-FAQ
This Community PWA is for newest generation of community, there is email summaries of public discussion, and private "Messages" area button at top bar for private discussions
Here this Wekan Community is part of larger Vanila Community. Vanila Community has about 3k members of Meteor.js / Javascript / Frontend / Startup / Growth Hacking etc