Create a mobile application

The services of a specialist in the development of mobile applications are required. You need to create an app for the camera and LED backlights on iOS and Android. The application starts the work of LED backlights and smartphone camera. The backlight works on 5-7 algorithms (taken from existing small libraries), the backlight algorithm changes the frequency and intensity / brightness of the LED inclusion. The specific algorithm of illumination is determined by external environmental conditions and the data obtained from the camera about the subject of shooting / observation, is applied "on the fly" once per shooting.
The camera algorithm and settings of the camera shooting / observation parameters are selected according to the light and contrast of the subject of the survey / observation. The camera performs the capture of the object, after which the user confirms his agreement with the choice of the observed object. The camera “sweeps out” the remaining objects from the observation field, mating them or in another way, in order to obtain max accurate data only from the selected subject of shooting / observation. After selecting and confirming the observed object, the camera algorithm changes/sets (once per shot) frame rate, focus, contrast, camera field of observation and possibly other camera parameters (for accuracy of observation).
Please submit your application as follows:
1 - your assumption about application tasks.
2 - your experience and skills in this field
3 - development cost
4 - development time
5 - Opportunity and cost of App & Google Stores
6 - the cost of a month of escort (correction of bugs)
7 - scheme and procedure of the expected calculation
Thank you.