Brilliant

Brilliant trains your brain in a different way. Instead of giving you short memory games, it teaches real subjects through interactive lessons.

The app is especially strong for people who like logic and problem-solving. Many lessons focus on math and scientific thinking, but Brilliant also covers topics like programming and artificial intelligence. The important part is how it teaches. You don’t just read an explanation and move on; you work through problems step by step.

That way, you’re still challenging your mind, but you’re also building knowledge that can be useful outside the app. Learning how to code or getting better at math is always good, and it can even help you in your professional life.

Brilliant is a great choice for curious adults, students, and anyone who wants mental exercise with more substance. If you’d rather learn something than play abstract games, this is one of the best apps on the list.