Compare the applications below:
Candy Crush: Allows gamers to advance to the next level once a goal is met
DuoLingo: Allows users to learn a language
How do these applications differ?
One is for business, and the other is for commerce.
One is for entertainment, and the other is for education.
One is for studying, and the other is for learning.
One is for teenagers, and the other is for adults.