The maximum XP a user can earn in a day depends on the Daily Challenge difficulty level.
Daily Challenge difficulty levels 1 star to 3 stars:
- 1 XP per correct answer. If the user gets all 10 questions correctly, he will earn 10 XP.
Daily Challenge difficulty level 4 stars:
- 2 XP per correct answer. If the user gets all 10 questions correctly, he will earn 20 XP.