A one Stop Sports, Fitness and Therapy app

I have a Sports Physiotherapy and fitness Company. I would like to create an one stop app (iOS and Android) that fixes the following General Introduction about the Company Introduction about the Staffs Choose your Services 1. Foot Assessment Know your Foot Type (Free) Foot Wears Available in the market (Paid) Additional Consultation (Paid) 2. Fitness Assessment How fit are you (Assessment details and Protocols) Results Customized Schedule Cards (Paid) 3. Sports Performance Assessment (Free) Training Schedule (Paid) 4. Physiotherapy Diagnosis (Free) Treatment Plans and Advice (Paid) 5. Workshops (Events) Registrations (Paid) 6. Videos Free Videos Paid Videos I would be more than happy to know about the time Frame to create this app and the charges. Cheers.