Terribly designed app

I dont know why but pretty much all the fitness logger apps look unfit/terribly designed. Developers really need to take some human interface courses to learn how to make a simple and easy to use product instead of cramming in features here and there on the screen and having to click through for a few seconds to eventually find what I am looking for. Whys the statistics page with graphs have a big empty white margin on the right??

Pumpmachine about Gym Hero Pro, v1.9.15