Hello I'm making an app for andoid for advanced in math.App is under construction. Here is the fb page https://www.facebook.com/pages/Your-Math/386847748098317?ref=hl I need some help 1)Where I can sell this app after I construction it,if I share first and after when I want to check out money to add payment info? 2)What you suggest that price should be,if there will be for learn from begginer people to olympiad student very help ful,math quiz,funny math etc. 3)Do you like app?!