Understanding Development Builds in React Native + Expo Mobile Apps

Build and ship your mobile app with me: 👉 https://kealy.studio Your AI-built app works in the simulator — but it won't work on a real phone. Why? Because mobile apps aren't web apps, and AI won't prompt your way out of understanding development builds. In this video I explain what development builds are, why they matter, and how to set one up with React Native and Expo so you can actually test native features like the camera, push notifications, social sign-in, haptics, deep linking, and location tracking on a real device. Most people skip this step and waste weeks wondering why their AI-built mobile app isn't making progress. Don't be that person.