BNA
The CLI AI agent that builds fullstack mobile apps
One prompt in your terminal and get a production-ready mobile app with backend, database, APIs, authentication and a native build in minutes
Expo
React Native · iOS + Android
- One codebase, two platforms
- Expo Router file-based navigation
- EAS Build + over-the-air updates
- Native modules out of the box
Swift
Native iOS · SwiftUI
- Pure Apple-platform performance
- SwiftUI views + Swift Concurrency
- Direct access to every iOS API
- iOS, iPadOS, visionOS targets
More frontends
Kotlin · Flutter · web targets
- Native Android via Kotlin / Compose
- Cross-platform via Flutter
- Web + desktop targets on the roadmap
Convex
Realtime TypeScript backend
- Reactive queries + mutations
- Built-in auth via @convex-dev/auth
- File storage, scheduling, HTTP actions
- Zero SQL, write functions in TS
Supabase
Postgres + RLS + Realtime
- SQL migrations + generated types
- Row-level security policies
- Edge functions + storage
- Realtime channels out of the box
No backend
Frontend only · ship fast
- Local persistence ready
- Add a backend later, no rewrite
- Smallest possible footprint
- Great for prototypes & demos
Skills the agent already knows
On-demand documentation the AI loads when your app needs it
Expo / React Native
- Animations & Reanimated
- Camera & barcode scanning
- Image, video, audio
- Push notifications
- Haptics & gestures
- Native tabs & routing
- EAS Build & OTA
- Linear & mesh gradients
- Safe area & keyboard
Convex
- Advanced queries & mutations
- Full-text search
- File storage
- Presence & realtime
- HTTP & Node actions
- Scheduled jobs & crons
- Pagination patterns
- Auth + identity mapping
- Internal functions
Supabase
- Auth for Expo
- Advanced RLS policies
- Database functions
- Edge functions
- Full-text search
- Storage buckets
- Realtime channels
- Pagination + types
- Push notifications
A two-phase agent pipeline
Designed for token efficiency. Save money, get better results.
Backend Builder
Builds everything that runs on the server, so your data is ready before the UI is even drawn.
- Database schema & tables
- Authentication & user accounts
- Queries, mutations & API routes
- File storage & background jobs
Frontend Builder
Builds everything you see and tap themed, navigable, and wired up to the backend that just shipped.
- Theme, colors & typography
- Component library & layouts
- Screens, tabs & navigation
- Animations & interactions
Terminal in. App on your phone out.
Four steps from terminal to a native build
Start
One command line. Node 20+, that's the only requirement.
Authenticate
Browser OAuth via GitHub or Google. Credits stored locally.
Describe
Pick your frontend and backend stacks.
Ship
Describe your app in natural language. The agent does the rest.
Everything you need, built in
Production-ready features from day one
iOS & Android
Native performance with Expo React Native. One codebase ships to both App Store and Play Store.
Realtime Backend
Live data that syncs across every device the moment it changes. No polling, no refresh buttons.
Secure Auth Built-In
Production-grade authentication with Google, GitHub, and email wired up before you write a line.
Dark & Light Themes
A complete theme system with light, dark, and system modes. iOS 26 Liquid Glass support included.
No Vendor Lock-In
Pure Expo, pure Convex or Supabase. No proprietary runtime, no hidden services, no badges.
Full Code Ownership
Every line is yours, readable, modifiable, deployable anywhere. Download, fork, ship.
Open your terminal
Your next app starts here. Sign up, get credits.