Cross-Platform Web & App Build

I need a single team to take my idea from concept to launch by delivering a responsive website plus native-quality apps for both iOS and Android. Although the project doesn’t fall neatly into the usual “e-commerce, social, or info-sharing” buckets, it does require secure user accounts and a fully functioning payment flow, so please be comfortable building with modern authentication protocols (OAuth 2.0, JWT, or similar) and integrating a mainstream payment gateway such as Stripe or PayPal and Google Map.

The web front end should mirror the core app experience, share the same user database, and adapt cleanly to desktop and mobile browsers. Whether you choose React, Vue, Next.js, or another framework, clean code, clear documentation, and modular components are essential so I can expand features later without a rewrite.

For the mobile side, I’m open to Flutter, React Native, or separate Swift/Kotlin builds—whichever you feel will give the smoothest performance while keeping one code base as unified as possible. App Store and Google Play deployment support is part of the job.

Deliverables
• Responsive website with user registration, login, password reset
• Payment gateway setup, test, and hand-off in live mode
• iOS and Android apps with identical core features
• Shared backend (Node.js, Django, or comparable) with REST or GraphQL API
• Admin dashboard for basic user and transaction management
• Source code in Git with clear README and build instructions

Acceptance criteria: users must be able to create an account, make a test purchase with a sandbox card, and see the transaction in the admin panel—all without errors.

If this sounds like the kind of full-stack build your team loves, show me a similar project you’ve shipped and outline the tech stack you’d recommend.