How we built the v0 iOS app
Vercel's v0 iOS app isn't just a mobile wrapper—it's a rethinking of how AI chat feels on native. Here's what they learned building with React Native.
Why it matters
v0 for iOS demonstrates how production AI applications are expanding beyond web—using native mobile as a key distribution channel. The technical patterns Vercel open-sourced here (composable chat, streaming animations, keyboard management) are becoming table stakes for AI product builders shipping across platforms.
The key facts
7 to knowv0 iOS ships as React Native + Expo—not web wrapper
Custom keyboard management hook spans ~1,000 lines of code with dozens of hours of refinement
Streaming message animations use staggered fade-in pools to limit concurrent animated nodes
Built proprietary v0 Platform API to unify web (Next.js) and mobile (React Native) clients via OpenAPI codegen
Multiple patches contributed upstream to React Native core (modal dragging, Yoga sync updates)
Vercel planning to open-source chat library patterns for AI apps
Design inspiration: Apple Notes, iMessage, ChatGPT iOS behavior
Go to the source
Vercel Blogvercel.com
Publisher excerpt: We recently released , Vercel’s first mobile app. As a company focused on the web, building a native app was new territory for us.v0 for iOS Our goal was to build an app worthy of an Apple Design Award, and we were open-minded on the best tech stack to get there. To that end, we built dozens of…