Moblie / Desktop app for Temporary service booking iOS Android

I am looking for a skilled developer to create a mobile/desktop app for temporary service booking on both iOS and Android platforms like [login to view URL] The app should include the following features: - Calendar booking integration: Users should be able to easily book temporary services through a calendar system. " for both doctors and assistants, notification, availabiltiy, ... etc" - create an account profile for both the doctor and the assistant. need FULL profile, resume, picture, accreditation, reviews, pay rate, and experience. After creating the account, we need to verify the credentials and approve them. - The app should be able to match the doctor with the available assistant based on availability, experience and how close they are to each other " I want to give them the option of 5,10,15,20 ... miles radius - Track the assistant after leaving her home like Uber Eat to make sure arriving on time - Payment gateway integration: The app should have a secure payment gateway for users to make DEPOSIT payments for the services they book. - User reviews: Users should be able to leave reviews and ratings for the services they have used. - The App would be FREE to use, I want to have an area for the sponsor companies to put their advertisement. - Need at least 1 year of support - Need to document clearly how to make future minor changes and updates -Time frame 8-12 weeks The estimated budget for this project is between $1000 and $5000. I am looking for a developer with experience in mobile app development for both iOS and Android platforms, as well as expertise in calendar booking integration and payment gateway integration.