Flutter Mobile App Developer Needed (iOS & Android) – Healthcare/Wellness Program App

We are seeking an experienced Flutter developer or development team to build a mobile application for a single healthcare/wellness practice. The app will be available on both iOS and Android and will serve as a companion platform for participants enrolled in a guided detoxification and wellness program. The application will be free for users and does not require subscription functionality. We are open to recommendations regarding architecture and implementation. We believe many features may be integrated or embedded rather than built entirely from scratch, including: Responsive web-based content embedded within the app Existing Ecwid store integration Third-party scheduling platforms Zoom integration HIPAA-compliant messaging solutions We are looking for a developer who can recommend the most efficient and cost-effective approach while maintaining a professional user experience. User Types Participant/User Program participants will: Create an account and log in Complete an intake questionnaire Schedule consultations Access educational content View downloadable resources Send messages to their Health Coordinator Purchase recommended products Complete a final questionnaire Administrator One administrator will: View and respond to participant messages Review submitted questionnaires Manage participant communications No regular content management system is required. The content will remain largely static after launch. User Flow After creating an account and logging in: User completes an Initial Health Survey User schedules a complimentary 15-minute consultation User is taken to the main dashboard/home screen From the dashboard, users can access: Program workbook First 28 days of content Shopping lists Educational materials Embedded videos Supplement store Secure messaging Additional consultation booking Final questionnaire Required Features Cross-Platform Mobile App Flutter application iOS and Android versions required User Accounts User login and authentication Two user types: Administrator Program Participants Intake Questionnaire Initial health survey with questions and text-based answers Consultation Scheduling Schedule an initial complimentary 15-minute Zoom consultation with a Program Coordinator Ability to schedule additional paid consultations Program Content Users will have access to: First 28 days of program content within the app Written educational content Embedded videos Shopping/grocery lists Downloadable PDF version of the complete program book Store Access Access to an existing Ecwid store Products include supplements, nutritional powders, books, and related wellness products Secure Messaging HIPAA-compliant messaging between participants and their Health Coordinator Final Questionnaire Completion survey at the end of the program Administrative Access View and respond to participant messages Review submitted questionnaires Additional Notes Single practice only No subscription functionality required Content will remain largely static after launch We are open to embedding or integrating existing systems where appropriate rather than building every feature from scratch