Make me a Moodle App

I am the developer of [login to view URL] Its an elearning website build on the platform Moodle. I want to make an app for this. Since, this is an open source platform. The custom app can also be made by just following the instructions given on the website [login to view URL] You simply have to follow the steps and use the ready made code available on Github. I have limited budget for this project. Its a very simple job for a professional to follow the steps. Since, hundreds of people have used the very same code. I am open to discussion for any new method. I also want you to tell me how it has been done so that I do not have to contact you all the time for it. I need to have the equations displayed properly within the app so that it works properly.