Its not as polished as Apollo but years of development will do that for you.

I noticed at one point in the side swipe upvote the down vote and upvote waw pointing down just the color was changing

Apollo is more like the wife who was murdered by Reddit, now watching you from heaven, hoping that you find a new social media platform to make you happy.

Highly recommend checking out wefwef - closest option to an Apollo clone as I've seen so far in terms of UI and functionality, and doesn't even need to be installed. Memmy is a very good second place option, but I've been using wefwef since I heard about it yesterday and ZI think it's better.

What app is that on the left

Which clients?