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Multi-platform development

Build for web, mobile, and backend from a single conversation.

Supported platforms​

Mobile (React Native)​

Native iOS and Android apps built with React Native and Expo.

Features:

  • Native performance and feel
  • Access to device APIs (camera, GPS, notifications)
  • QR code for instant testing on your phone
  • App Store and Google Play ready

Best for:

  • Consumer apps
  • Apps needing offline support
  • Native device features

Web (React)​

Modern web applications built with React and Vite.

Features:

  • Responsive design out of the box
  • Fast loading with Vite bundling
  • TailwindCSS styling
  • Instant Vercel deployment

Best for:

  • Dashboards and admin panels
  • Content-heavy applications
  • Desktop-first experiences

Backend (Python/FastAPI)​

Server-side APIs with PostgreSQL database.

Features:

  • FastAPI with auto-generated docs
  • SQLAlchemy ORM
  • Automatic database migrations
  • NeonDB PostgreSQL hosting

Best for:

  • Custom business logic
  • Data processing
  • Third-party integrations

Full-stack combinations​

CombinationUse case
Web + BackendSaaS applications, admin dashboards
Mobile + BackendConsumer apps with user accounts
Web + Mobile + BackendCross-platform apps with shared data

Adding platforms​

Start with one platform​

"Build a task management web app"

Add mobile later​

"Create a mobile app that syncs with the web version"

AI reads your existing backend and creates a mobile frontend that connects to the same APIs.

Add backend to frontend-only apps​

"Add a Python backend with user authentication"

Platform-specific code​

Appifex maintains separate codebases for each platform:

your-project/
├── web/           # React web app
│   ├── src/
│   └── package.json
├── mobile/        # React Native app
│   ├── app/
│   └── package.json
└── backend/       # FastAPI backend
    ├── app/
    └── requirements.txt

Each platform deploys independently:

  • Web → Vercel
  • Mobile → Expo
  • Backend → Vercel (serverless functions)

Cross-platform consistency​

When building multiple platforms, AI ensures:

  • Shared design tokens - Colors, fonts, spacing stay consistent
  • API compatibility - Same endpoints work across platforms
  • Feature parity - Core functionality available everywhere
  • Platform-appropriate UI - Native patterns for each platform

Switching platforms​

Use the platform toggle in the project view to:

  • See platform-specific code
  • Deploy individual platforms
  • Add features to specific platforms
"Add push notifications to the mobile app only"