x1, a Y Combinator-backed AI app studio, launched publicly on August 26, 2026 and took the top spot on Product Hunt the same day. It builds native iPhone apps through a guided, step-by-step workflow that runs from a rough idea all the way to an App Store submission, and it hands you the React Native source code to keep.
Try It: Take an App Idea From Prompt to TestFlight
x1 is free to start with 100 credits, no card required, so you can build a working prototype in an afternoon. Open the Idea Studio, describe the app you want, and answer a short set of questions. x1 maps out the screens, features, and flows, then moves through Brand, Design, and Build studios to generate the interface and the code. Preview the result live in Expo Go on your own phone, share a beta through TestFlight, and iterate screen by screen instead of regenerating the whole app from one prompt.
Why It Matters for Creators
Most AI app builders target the web. x1 is built specifically for Apple's ecosystem, generating React Native code and handling the parts that usually stall solo builders: App Store screenshots, listings, and submission. Because it remembers the decisions behind your app, changing one screen updates the dependent flows rather than breaking them. For designers and indie makers who have an idea but not an iOS toolchain, that closes the gap between concept and a shippable app. It sits alongside web-first tools like the AI app builders we have covered, extended to native mobile.
Key Details
Platform: iPhone/iOS only, React Native under the hood.
Studios: Idea, Brand, Design, Build, and Publish, each covering one stage of the pipeline.
Testing: Live Expo Go preview and TestFlight beta sharing before submission.
Pricing: Free tier with 100 non-expiring credits, paid plans at $20, $50, and $100 per month with monthly, quarterly, and yearly billing.
Ownership: Paid plans export the full React Native project as a ZIP. The team, led by founder Manil Lakabi, posts updates at @x1_apps and is listed on Y Combinator.
What to Do Next
Start with the free tier at x1.new and build one small utility app end to end to see how the guided workflow handles design and submission. If it clears the App Store review cleanly, the export-your-code option means you are not locked in, which makes it a low-risk way to test whether AI-built native apps are ready for your production pipeline.
