"Class box" is an app which helps students create course plan developed by 4 Chinese. This app was created in 2012. They get over 1 million users with only 4 people. How do they make this?The co-founder of "Class box" Tianfang Li explains this on Zhihu. Here is what he said:About millions of users, in the mobile Internet era what we need to do is just find a good entry point, rapid iteration and with a little luck, a small team or even an independent developer can make millions user level product is not a rare thing in China.Why our team is so small, there are two main reasons. The first We ar...