Software para Celular android

Is an application that should be placed in GooglePLAY for the user to download. Google costs will be paid by me. I always insert new items in the parent table and update the records (table field Date_update). The user should be able to update the application whenever I release a new version. I'm working on the table when I click to make available the administrative menu generates a version. The system should be used offline, but if the user is logged in the sections that are links will take you to a web page. The system consists of a catalog of (1) Sections and (2) Subsections (3) Categorized and (4) Items and the user can choose to sail by (2) Subsection or (3) Category you must create a user to use the application. In a postgresql server. Because users can interact with the application their product lists and participate in price research. ----- I have to be able to update the software without depending on the company. All screen information needs to be parameterized. ----- I'm going to share with the whatsapp, facebook, email, instagram, twiter, and other possibles. ----- The aplication need search by words keys. ------ Pesquisa/Research : each version upgrade, the user can participate in the research by product. (1 time per product code) He can choose from 3 options (DOWN) (OK) (HIGH). This information will be sent to the database (create table Id_user_net key) on the central server. I will use this information to keep the software updated. Raising or lowering the price of products. ------ manager taks A table where it creates jobs and mark as done or delete the task. ------ my lists - is a functions to create product lists (insert and delete products) and share wither another users. ------ I wanted to know how we can do the upload of the application of the last slide. My application has username and password. How can we upload the user authenticating to my application? I can make a form. The user authenticates. I give a token worth for 50 minutes. you'll have to get some parameters see where we store the photos. example: Need select CHECK TYPE House 1 - check hall - [login to view URL] House 2 - check door - [login to view URL] House 2 - check flower - [login to view URL] Similar to: [login to view URL] [login to view URL]