Chess King Beginner to Club Player

I have used chess King apps. Overall I found them quite good, but stopped using them seriously as I wasn't comfortable spending so much time staring at a screen. It sometimes looks like they translated from another language word for word as they are often verbose and use uncommon language. "The invidious invasion of the rook" is a memorable.

I have bought their maximum package(104 courses included) and it appears great. I teach my 5 year old son and myself using it and Steps Method.
Imo The beginner to club app is the best chess app I have used. Now that I am retired I'm going to start using it again.
Why did you buy that, it's completely free, all courses, HappyMode of this App