HELLO,
Yes, this is possible. You will require web site / web host which will accept the requests sent by users and make it available for you to review and process. We'll develop the web app and it need not be visible or accessible to users, just the app will use it.
- Do you want payment processing or you will handle it out site the app directly with the user?
- Believe you only want android app?
- The back end web app will have a secure log in where you can view the photos sent by users, add notes on each request, set status (pending, done, canceled etc)
- Do you have a web host? We can recommend one if you don't.
Lets discuss,
Nirandas