Desenvolver um Software

Hi there, I want a APP to manage orders, take photos, and upload the photos to our server, who will be run in android OS, and must have the follow functionalities: 1 - The first window will show a option to login in the app, with option to new users and to user already registered; 2 - So the second window, will show a option (button) to see a number of credits buyed, another option (button) to buy more credits, another option (button) to see queue of orders created and another option (button) to create new orders. PS.: The user will only create new orders if he have credits enough to do it. 3 - After the user fill the form, and push a button "START" must be opened the camera, and played a specific audio, so the camera will be triggered by another audio signal, who will come from a mic that are in the P2 connector. 4 - After each photo taken, the camera will play a audio signal through the P2 connector . 5 - After a variable number of photos taken, the mic will receive a double signal of audio, meaning that the process was finished, so the order will be closed and the photos taken will be stored in a specific folder. Where will be all photos taken together the information inputted in the form order. 6 - When the user want, he can send the order to our server, clicking into a button "send order" and the folder with the photos taken will be automatically uploaded to our server with all information inputted into the order form. 7 - Must have a system of buy new credits, and after each order created, the credits will down, until be zero, and the user to need buy more credits. 8 - Must have a specific button into each order, to take photos like a normal camera. Triggered from the user. And this photo taken must included into the folder, together all photos taken by audio trigger as the description of item 5. 9 - After the photos be uploaded into our server, these photos must be deleted from the device. 10 - After the order (with photos) be uploaded to our server, and the photos be deleted, the order will keep exist in the device, and will apear with a message "waiting process". 11 - When our team see that have a new order in the server, with all photos uploaded. So we will work on the photos, doing all service that we want to do. And when we complete all work, our team will input in the order (that is on our server) a specific URL, that will be showed in the order, that is in the user device, like a message "complete" and when the user enter into the order, he will see a button to open that service, that will be opened into a browser of the device or a browser into the APP. 12 - The app must have a FAQ; 13 - Must have a contact information to our team. 14 - I will need a website to manage all photos and orders sended by users. Where will apear a queue of orders, and a option to downalod each order, with the photos into each one, and after we complete the service on the photos. We needs edit the status to complete and input a URL where our service is. It need be synced with the device of the user.