Write a simple Android application

What I’m looking to develop a really simple application its a review and rating app the app will contain the followings: login and join page (existing and new users) Home page will contain 4 main categories Then each category will include 4 sub categories And at last each sub category will include a list of products (product photos up to 3 /4 photos with a product profile) and ranking and comments space for the app user where he will be able to write a comment and give a rate for the product. options to be include in this application (sort the products according to top and low ranked) the latest’s ranks and comments, share the product rank on social media. this application should have a backend admin to update the product list and categories with a simple and nice design and clean code. i will also need to get the source code once you made the job.