Build Cross-Platform Mobile App

I’m ready to turn my idea into a fully-functional mobile application that runs seamlessly on both iOS and Android. I have the concept defined and now need an experienced developer (or small team) who can guide the technical choices, design the user experience, code the app, and prepare it for release in both stores.

From laying out the architecture through to final deployment, I’m looking for someone who can handle the entire lifecycle, communicate progress clearly, and suggest best-practice solutions along the way. If you have a portfolio of live cross-platform apps and can point to measurable results—downloads, ratings, performance stats—that will help me gauge fit quickly.

Please tell me which framework or tech stack you recommend (Swift / Kotlin, Flutter, React Native, or another option) and why it suits this project. Include estimated timelines for each milestone—design, development, testing, and store submission.

On delivery day I’ll need:
• Source code and build files
• A compiled, store-ready app for both platforms
• Basic documentation so I can maintain and scale the project in the future

If this sounds like a match for your skills, I’d love to review your past work and discuss the next steps.