Brilliant

Brilliant is an educational app to test your knowledge of different subjects, mainly math and physics. To do so, instead of beating you senseless with hundreds of pages of theory, it gives you tons of interactive exercises.

The app includes thousands of problems ranging from basic math to computational science, including algebra and probability. In each subject, you can find hundreds of problems that both test your knowledge and give you instant feedback.

One of the great things about Brilliant is how it keeps a complete list of your activity. That way, you can see on your profile how you've progressed, how many subjects you've got a handle on, how many problems you've solved, how many days in a row you've studied, and much more.

Brilliant is an excellent educational app that lets you practice many different subjects. Best of all, you can practice them in a fun way, with intuitive and well-formulated questions.