I’m launching a new productivity tool and need it released simultaneously on Android and iOS. The goal is a clean, intuitive experience that helps users streamline daily workflows; beyond that core purpose, I’m open to your recommendations on the best feature mix, tech stack, and UX patterns that suit a modern productivity app. Scope • Build the mobile product end-to-end: architecture, UI/UX, front-end, back-end and any required API integrations. • Produce store-ready builds that meet all Google Play and App Store guidelines. • Hand over thoroughly documented source code so future updates are straightforward. • Integrate lightweight analytics and crash reporting for post-launch monitoring. • Provide a short walkthrough of deployment and versioning to ensure I can push updates independently. Deliverables 1. Production-ready Android (.AAB) and iOS (.IPA) packages. 2. Complete Git repository with commit history. 3. Setup scripts or clear build instructions. 4. Concise user/onboarding guide. Acceptance criteria • Installs and runs smoothly on the two latest major OS versions for both platforms. • No critical crashes during a seven-day beta involving at least 20 testers. • UI aligns with Material 3 on Android and Human Interface Guidelines on iOS. • Core interactions respond within 200 ms on mid-range devices. Cross-platform frameworks like Flutter or React Native are welcome for efficiency, though native Kotlin/Swift solutions are equally acceptable if they better serve performance or security needs. An MVP ready in six weeks, followed by a two-week refinement window, would be ideal. Let’s build a tool people truly rely on to get things done.