# UI Evolution Engine

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Igor Bidenko](https://cerebralvalley.ai/u/nk9seo)
- **GitHub:** https://github.com/nk9seo/UIEvolutionEngine
- **Demo video:** https://youtu.be/xT7mW_0o04o
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/386

UI Evolution Engine turns a screenshot into a compiled, running native SwiftUI app, then reviews and improves it on its own.

Screenshot-to-code tools stop at code: nobody compiles it, runs it, or checks how it looks, so the developer gets a pile of code that may not build and rarely matches the design. Our agent closes that loop. A developer drops in a screenshot of any app, website or design, describes the change they want and picks macOS or iOS. The agent then:

• segments the interface;
• writes a validated design spec and a multi-file SwiftUI project;
• compiles it with Xcode, sending compiler errors back for automatic repair;
• launches the app in the iOS Simulator or on the Mac and captures the real screen;
• compares that render with the reference and produces a scored, prioritized issue list.

One click turns selected issues plus the developer’s own instruction into a new version, which is compiled, launched and reviewed again. Every version is kept, and the result opens directly in Xcode or downloads as a standalone project.

It is built for designers and iOS/macOS developers prototyping native apps, and for teams porting web products to Apple platforms. Nothing in the pipeline is mocked: every step is a real model call and a real Xcode build, and if the simulator is unavailable the app says so instead of faking a preview.

## More from Meta Global AI Developer Hackathon

- [FlashWatch](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/383)
- [Drawing-to-Parametric-CAD](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/384)
- [Meta Quant Auditor](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/385)
- [Empu](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/387)
- [2201344667392187](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/388)
- [Cozy Peptide](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/389)

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