What is Reddit's opinion of Stop - Categories Word Game?

From 3.5 billion Reddit comments

Stop - it's like Scattergories but for only two players, and you take turns rather than play at the same time. The main gimmick is that if you go first, you can stop the timer early and give your opponent less time to play.

something like Stop or Scattergories?

Stop! It's a pretty fun game, here's it's link to the Google play store https://play.google.com/store/apps/details?id=com.fanatee.stop

You need to brush up on your vocabulary; that's all you need to be proficient in Stop.