How to Build and Publish a Mobile App with AI in Just 12 Minutes (Opus 4.5 + Nano Banana Pro)

🚀 Join my community to build and launch your app idea with AI today @ https://www.skool.com/aiapps/about 💡 Plan and build your entire app 10x faster @ https://appcanvas.io In this video I walk through exactly how to build a mobile app with database, authentication, backend AND payments all in under 20 minutes. This is insane, because up until November 2025, it was incredibly difficult to add in-app payments to a mobile app without spending a lot of time in technical tools working with software development kits. In the latest version of Vibecode, they integrated RevenueCat for in-app payments, the industry leading in-app payment provider for mobile apps, making it so much easier to add in-app payments to your mobile app. I challenged myself to build a mobile app with database, authentication, backend and payments as quickly as possible, and I did it all in this video Chapters: 00:00 — Intro: build a full mobile app with auth, database, and payments 00:51 — Start timer: building with Vibe Code 02:03 — Models: Opus 4.5 + Claude Code sandbox 02:36 — RevenueCat integration overview 04:39 — App generated in ~5 minutes 05:03 — Add Nano Banana Pro via APIs 06:04 — Create $4.99 monthly subscription 07:06 — First meme generated; saving issue appears 08:53 — Publish to App Store flow 09:34 — Under 20 minutes: full app with payments Key points: - I break down my app idea and explain what I'm building - I walk through Vibecode so you can see how it works - I add nano banana pro to my app - I set up RevenueCat for payments in Vibecode - I show you how to publish to the app store directly from Vibecode Follow me on social: https://www.linkedin.com/in/ashbychris/ https://x.com/chris_bgp