Marketing of apps in google play store

good day, I am highly expertise in this field pls provide me full job description with wireframes or rough sketches of the app so that i will tell you exact time and cost for this to be developed. Relevant Skills and もっと

In the bid amount, I can provide website, android application , ios application and desktop application. No advance payment is needed. 1 year support will be there with Daily communication , updates Relevant Skills a もっと