It takes a programmer to write an Android application

Hello, there. I need a programmer to write a paid application, which will later be posted on the Play Store. For your work, I guarantee you a deduction of funds in the amount of 25% of the amount of all payments for applications for a period of six months. The application will be a completely new and progressive method of preparation for the exam in physics, which is very relevant at the moment. After writing the application, you will know its name, and you will be able to monitor the number of downloads and calculate the amount of due payments that I guarantee you. With respect, Alex Tolkien.