Callstack Jan 12, 2026

Building v0 iOS and Fixing React Native Along the Way

Article Summary

Building an AI-powered iOS app from scratch sounds exciting until you hit React Native's rough edges. The v0 iOS team found plenty of them.

Callstack's podcast dives into the real-world challenges of building v0's iOS app, an AI-driven development tool. The team shares how they navigated React Native limitations and contributed fixes back to the framework while shipping a production AI application.

Key Takeaways

Critical Insight

Shipping a complex AI app on React Native means you'll likely need to fix the framework itself, not just build on top of it.

The conversation reveals specific technical decisions about when to go native versus staying in React Native for AI workloads.

About This Article

Problem

The v0 iOS team hit limitations with React Native while building an AI-powered development tool. The framework wasn't equipped for what they needed in a production-grade AI application.

Solution

Callstack's engineers fixed issues in React Native and sent those fixes back upstream. They managed to keep shipping their product on schedule while making sure the broader ecosystem benefited from their work.

Impact

The team showed that building complex AI applications on mobile means contributing to the framework itself. Their approach created a model where shipping real products directly improves the platform for developers who come next.

Recent from Callstack

Related Articles