Overly monetised/ad-supported for the effort that has gone into it. Poor translation and spelling indicate a lack of respect for the user, would take little effort to get it right. Scoring is arbitrary and pointless, and if you get a task wrong, the scorecard covers up the picture so you can not check your work. $1 to remove ads (a 20s video every 2 tasks)? I've paid $1 for much more polished apps than this. Either a shameless cash grab or a naively marketed high school project. It works, just.
Not bad