This lecture is a guideline that summarizes how to make more than 3,000 won per month through platform business. I stayed in the state of earning 20 million won per month for a long time, and then created a platform and started making more than 3,000 won per month. I will pass on to you the know-how I learned from the extremely difficult times to the present, where I make tens of millions of won per month.

Stop making low-quality apps. Let's make clean and beautiful Android apps with Kotlin.

This lecture is a roadmap lecture to become a freelancer with a salary of over 100 million won. I still remember the time when I was barely making 150,000 won a month from advertising revenue. I will pass on to you the know-how I learned from the very difficult times to the present, where I make tens of millions of won in revenue every month.