Looks like they replaced the app with a Slack bot. That is more interesting than the article.

There are some services which would be more convenient as a bot on a chat platform than a "portal" site or a mobile app. Some issues with service-specific site / apps:

- password that's perpetually forgotten (unless the site plays well with the password manager)

- proprietary, doesn't explicitely support integrations unless the authors implement them

- yet another set of notifications to deal with.