What? This World Doesn't Use Smartphones?

Qi Ling traveled to a parallel world. He discovered that although smartphones are common in this world, there are no mobile apps. This shocked Qi Ling, what if he developed these. When the time comes, won't the prestige, Douyin, Chou Tuan, and Pin Xixi all belong to me? Then he started creating the app. In just a few years, his company's market value ranked first in the world. And he also became a legend! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.