Sounds fun. How did you start it? I mean the initial users?

I love the idea, and thanks for doing this. I would like to create free apps too just for the heck of it but one of the biggest issues I find with creating free app store apps is that, regardless of whether you are charging money or not, you need to keep feeding Apple $100 per year, which is excruciating, especially for countries where the developer population is much higher and the income disparity is high. Since the Play Store only charges 25$ ish and one time, it is much more feasible to do it on the Play Store, hence the availability of such apps is more on Play Store.