You know how it is: you spend way too much time on Twitter or Slack when you should be working. Ideally, you’d just not launch them, but that’s not super feasible if you also use these apps for work.
The answer, then, is an app that will hide or quit apps for you after a certain amount of idle time. Called Quitter, it sits nicely in your Mac’s menu bar and makes sure you don’t fall down the Twitter hole.