In the app, 3 levels of complexity are available:
2. dive deeper
3. try your hardest
We suggest you start from the "Warm-up" section as in this way you may solidify your knowledge.
However, if you find this section too easy for you, you may scroll down to start with the "Dive deeper" or "Try your hardest" sections.
Please, be advised, that some of the courses may have no levels of complexity. In this case, you will not be able to scroll the sections down and will see only one level in the app. We apologize for this temporary inconvenience. We are currently working on adding content to the courses and expect to have the levels of complexity in every course soon.
Also, you should know that by completing the quizzes you will gain points and raise your level in the "Profile" menu. The more quizzes you do, the higher level you have.