Flutter Productivity App Development

I have a complete UI design and now need it turned into a fully functional Flutter application that runs smoothly on Android, iOS, and as a responsive web app. The core goal is a Utility or productivity tool that helps users stay organised wherever they log in. Key features to implement • To-do lists and reminders – create, edit, schedule, and mark tasks as done, with push and local notifications. • Calendar integration – two-way sync with the native calendars on mobile and Google/Outlook on web. • File storage and sharing – allow users to attach documents, photos, and links to any task, and share them securely. • Linking to API – my back-end endpoints (REST/JSON) are ready; connect authentication, CRUD operations, and real-time updates through WebSockets. I will supply the Figma files, brand assets, and API documentation. Code needs to follow clean architecture, null-safety, and be ready for future localisation. Please include state management of your choice (Provider, Riverpod, or Bloc are all fine) and unit tests for critical logic. Deliverables 1. Flutter source code in a private Git repo. 2. Working builds: APK, iOS TestFlight, and web deployment on Firebase or Netlify. 3. README with setup steps and brief API integration notes. I’m aiming for a concise, maintainable codebase and clear communication throughout the project. Let’s get this shipped!