Simple iOS app to capture and upload images to a backend with simple image processing python code (repost)

We need an iOS app that is very simple. The main screen of the app has four fields to enter four values (Name as a string, and X, Y, Z as float) and two buttons. The first buttons is a “help” button that when clicked, the app displays three images that we will provide. The second is a “Launch camera” button that when clicked, the app starts to take two images from the front camera after a specified amount of time. The app then submits the two images along with the entered four values to our backend. A python script should be written to the backend that performs a very basic processing on the submitted images. Specifically, the python script receives the two images and the four values, then it performs a subtraction between the two images, and save the result as “[login to view URL]” Notes: 1 - Once the “Launch camera” button is clicked, the main screen should disappear and the camera view is displayed instead. The camera view should have an overlay of a countdown timer that when ended, the app takes the first image. Then, the same thing is repeated for the second image, i.e., the camera view has an overlay of another countdown timer that when ended, the app takes the second image. 2 - We need the source code for both the iOS app and the python script + installation of the python code in our backend to test the app. 3- We expect the cost to be reasonable since the app is very basic. Thanks