Physical Goods Marketplace App Development

I’m building a new marketplace focused exclusively on physical goods and need an end-to-end development partner who can deliver both a responsive web app and companion mobile apps for iOS and Android.

The platform must feel seamless no matter how users access it, so shared business logic and a single back-end are important. I’m flexible on the exact tech stack—React + Next.js, Vue, Flutter, React Native, or similar—provided the result is fast, secure, and maintainable.

Key features to include:
• User profiles with onboarding, settings, and order history
• Product reviews with star rating and basic moderation tools
• Secure payment system that supports major cards and digital wallets, with escrow or hold-release logic

Acceptance criteria
1. Production-ready web app deployed to a cloud host and reachable on my domain.
2. iOS and Android builds accepted (or at least approved for TestFlight / Play-Console release).
3. Payments processed successfully in both sandbox and live modes without exposing PCI data.
4. Automated tests covering sign-up, listing creation, checkout, and review posting.
5. Complete hand-off: clean, documented code in Git plus infrastructure scripts and a README for local setup.

Please outline the stack you recommend, an estimated timeline, and links to similar marketplace or e-commerce apps you’ve shipped. I respond quickly to well-detailed proposals and look forward to collaborating.