Productivity App for iOS & Android

I need a full-cycle developer (or team) to turn my idea for a cross-platform productivity app into a polished release on both the Apple App Store and Google Play. The concept is still flexible—I know it must fall squarely in the “get-things-done” category, but I’m open to your recommendations on the exact feature mix. Task management, calendar tie-ins, and push notifications are all on my mind, yet I’m happy to refine or expand that list once we talk through technical constraints and UX best practices.

Here’s what success looks like to me: a stable, intuitive app that syncs seamlessly between iOS and Android, follows the latest platform guidelines, and ships with clean, well-documented code so future iterations are straightforward. I’m counting on you for UI/UX design, native or cross-platform development (React Native, Flutter, or another framework you can justify), testing, store deployment, and light post-launch support for any critical fixes.

Deliverables I’ll need:
• Wireframes and final UI assets
• Source code with version control access
• Test builds for both platforms
• Store-ready builds, screenshots, and metadata
• Brief hand-off documentation covering setup, APIs, and libraries used

If this aligns with your skill set, let’s discuss timeline, milestones, and any early insights you may have about architecture or feature prioritization.