Fun Vibe-coding Mobile Apps - 2026-02-13

Quick Overview

The presenter successfully used Rork, an AI-powered mobile app builder leveraging React Native and Expo, to create a complex mobile app prototype in under 15 minutes, demonstrating its speed and power, despite noting that the AI-generated code needed minor adjustments, particularly regarding proprietary Apple features like iCloud storage.

Key Points: Rork built a complex, cross-platform mobile app prototype in under 15 minutes using only natural language prompts. The generated app used React Native with Expo, which allows simultaneous building for Android and iOS. The presenter noted that the AI-generated code was generally good but required minor corrections for proprietary features like Apple's iCloud storage. The presenter mentioned that while the code is fast to generate, complex apps might require manual iteration or refinement. The presenter plans to share the generated code on GitHub, encouraging others to experiment with the tool, which costs $20/month for the Pro tier. The presenter ultimately fixed the minor bug in the generated code without needing to look at the code itself, relying on the AI feedback loop. The TriLog app, the example project, tracks mood, energy, and activities in a visual grid format.

Context: The video features a demonstration of Rork, an AI tool designed to build native mobile applications quickly by interpreting natural language descriptions. The presenter, Joe, is showing how fast the tool is by building an app similar to his own complex habit-tracking app, TriLog, which he developed over 20 years using traditional coding methods. The demonstration highlights Rork's ability to generate cross-platform code using React Native and Expo, and the presenter interacts with the AI feedback loop to refine the generated application.

Detailed Analysis

The presenter demonstrates Rork's capability to generate a complex mobile application prototype based on a natural language description, completing the initial build in under 15 minutes. The app being built is a calendar/tracker similar to the presenter's own complex app, TriLog. Rork utilizes AI to build cross-platform apps using React Native and Expo. After the initial generation, the presenter noted that while the process was fast, some proprietary features, like iCloud integration, required manual tweaks, although the AI feedback loop helped resolve issues without the presenter needing to manually edit the generated code extensively. The pricing model is revealed, showing a $20/month Pro plan for private projects and features like a code editor and GitHub integration, while the Free tier allows for public projects. The presenter encourages viewers to try the tool, emphasizing that the speed of iteration is revolutionary compared to traditional development timelines, which took him years for a similar app.