I’m building a productivity-focused mobile application and need an experienced Flutter developer to take it from concept to a polished release on both iOS and Android. The entire stack will be Flutter/Dart, so solid knowledge of state management, responsive layouts, and platform-specific integrations is essential. Core objective The app’s primary purpose is to streamline day-to-day productivity. While I have an initial feature roadmap, I’m looking for your technical input on the best way to implement task handling, reminders, offline data sync, and intuitive UI/UX patterns that feel at home on both platforms. Scope of work – Design and code the full Flutter application, including navigation, theming, and persistence layers. – Integrate with device calendars and notifications where appropriate. – Build clean, testable Dart code and set up unit / widget tests for critical logic. – Prepare App Store and Google Play ready builds, complete with icons, screenshots, and build notes. Acceptance criteria 1. The app installs and runs smoothly on Android 12+ and iOS 15+. 2. All key productivity flows (creating, editing, and completing items; scheduling reminders; quick search) work without crashes. 3. Codebase is handed over in a private Git repo with clear README and build instructions. 4. Basic CI / CD script (GitHub Actions, Bitrise, or similar) triggers test and build pipelines. If you have prior experience launching Flutter productivity tools—or creative ideas to elevate user engagement—let’s discuss your approach and timeline.