4.0
2020-08-16
This is a complete remake of the app with a new design and new features!
200 new test questions.
You can now compare your scores with others and see how others answered a question.
3.1
2018-01-16
Added 13 new questions.
Fixed a bug that caused questions to be only partly visible.
Fixed an error with the menus.
Other minor fixes.
3.0
2017-09-13
New feature - Zoom-able high resolution question images: Tap on a question image to enlarge - now pinch to zoom.
Added a short introduction to help new users of the application get familiar with the features of the application faster.
2.0
2016-10-18
Improved several question and explanations.
Fixed a few minor bugs.