Very helpful!
Very helpful, not only regarding job, also in daily life!
Mental Math Always glitches
It’s so annoying when I do the mental math and the timer gets stuck at zero before I can see my score. Otherwise I love the blue layout
Great idea but rip off price structure
The creator did a great job with that app but it seems like he didn’t manage to evaluate himself how much it is worth. You can easy buy books on this topic so don’t waste your money for an upgrade which charges you 49€!
