I need a cross-platform utility/productivity app built from the ground up and released on both the App Store and Google Play. The concept, detailed user flows, and screen-by-screen requirements are ready to share once we start; what matters now is finding the right developer to turn them into fast, stable code and a clean, modern UI. The build may use either a shared framework such as Flutter or React Native, or two native projects in Swift and Kotlin—whichever delivers smooth performance and keeps long-term maintenance straightforward. Expect standard productivity features like secure local storage, background sync, push notifications, and a concise onboarding flow. Analytics (Firebase or similar) and basic in-app settings must be integrated as well. Deliverables • Interactive wireframes and final UI assets • Complete iOS and Android app builds, signed and ready for submission • Source code with clear comments and build instructions • Basic backend or cloud function setup if the feature list requires it • Test reports covering current OS versions and common devices • Deployment support through the review process until both apps are live Acceptance criteria: both versions pass store review, load in under three seconds on recent devices, and meet every functional spec I provide. Once live, the project is considered complete and full IP transfers to me.