Hi ,
I have seen all the screens in [login to view URL] file , and can do it easily .
I CAN WORK IN LESS BUDGET , IF YOU WANT WE CAN DISCUSS (in chat) .
I have developed some similar android app before .
My Android App with similar features (login and signup ) is already build , i can show you its description .
As you described , you want login , signup and store information on database , i will do all it using php and mysql and java code in android.
I will easily make database and will store all your information over there .
I use JSON Parsing for this type of apps .
And I will make your app with high quality , i will also use Material Design for designing of your app as i have experience in it also .
I will complete your project very quickly .
Please Contact me and tell me more about your project .I can start working right now .