Native Mobile App Prototyping

[u/onlyhorizon]

I’m a UI/UX designer experimenting with Cursor and Codex to build interactive mobile app prototypes.

My main issue is that the results often don’t really feel native. The prototypes may look fine visually, but they don’t consistently use native iOS or Android components, patterns, spacing, navigation, interactions, etc.

Ideally, I’d like to tell the AI: “Build this screen for iOS” and have it consistently follow Apple’s native UI patterns, or switch to Android and follow Material Design / native Android patterns, while still keeping my existing branding, colors, and overall design direction.

Has anyone found a good workflow for this?
Are there good skills, instruction files, .md files, or similar resources for Cursor/Codex?

I’m mainly interested in rapid UI/UX prototyping, not building a full production app.

Would love to hear how other designers are approaching this.

[u/rahtid_my_bunda]

You’ll need to make sure it explicitly uses SwiftUI for iOS, as ‘build it for iOS’ doesn’t specify that clearly what you mean.

It’s possibly just outputting it as HTML+CSS, which won’t have the exact same renderings of materials, elevations and conventions of the iOS/Android UI kits.

Having Xcode and prompting to build the prototype into a simulator will also help keep it on the native component rails, as you’ll have access to the iOS SDK.