What to do in addition to this app to maximize the learning?

Question

must learn how to code, maybe some other app? or some place to get simple coding tasks for practice?

Answer 1

I would suggest that you put to test everything you learn here on personal projects. Instead of great practice, it's also a good way to learn things you wouldn't learn in any similar app. And Google is your friend in case you face dead ends.

Answer 2

Just Refer Tutorialspoint.com best site ever.

Answer 3

For Simple coding Practice goto Sanfoundry.com to get 1000+programing questions on lots of languages.