Develop app for psychological assesment

We need to develop an app (android/iOs) for psychological assesment, similar to PsychoPy with additional features. This is a remote project. The goal is to distribute this app among psychologist and parents. Customers need to be able to select between these two profiles. We also need an administrator profile only available to us (e.g., with a password). Psychologists have to register new patients with their name, date of birth, age, gender, postal code, educational level, and developmental status. After the register the patient or they parent need to agree to a Privacy Policy. Then, for a particular patient, they can select one or more psychological tests to apply. The app must be able to present instructions and stimuli (images,sounds) of the test, record the patient's response (e.g. clicking on one of the on-screen options), score the test and provide the psychologist with a pdf report on the patient's performance. Parents' profile is very similar, except that the report must include additional information. The administrator profile has to allow us to design the psychological tests available for the other profiles (platform similar to PsychoPy), access to data collection of all patients (i.e.,the database), modify the scoring procedures for a specific test and editing the content of the general report provided for each test. After development, you will thoroughly test the app for any bugs or glitches and make necessary fixes. Following each platform's respective guidelines for app submissions, you will submit the app to the App Store and Google Play. Delivery time is between 2 and 5 months (we have to agree on a specific deadline). We prefer Central Standard Time (Mexico) (GMT-06:00) workers, but can reconsider if necessary.