The goal of academic science is to advance research, in this case on fields such as machine learning, computer vision, image processing, pattern recognition, data mining, natural language processing, cryptography, quantum computation, signal processing, artificial intelligence, information theory, network/graph theory, optimization algorithms and so on.
If you just want to code and make apps and you're not interested on applied mathematics, algorithms and research then I would argue computer science is not for you, but maybe in the US the curriculum is different?