Sleek
Describe your mobile app or drop a reference screenshot, and Sleek generates editable iOS and Android screens that actually follow mobile conventions: native navigation, tap-target sizing, correct device dimensions. Follows the iOS Human Interface Guidelines and Material Design. Exports to native Figma layers or straight to React and Tailwind.
Strengths
- Respects real mobile conventions (native navigation, tap targets, dimensions), where a bare build prompt improvises an approximate UI
- Dual export: native Figma layers to keep designing, or React + Tailwind to jump straight to build
- No code required: a PM or designer frames their screen before feeding a build agent
Limitations
- No Figma replacement for a serious design system: reusable components, tokens, variants stay out of scope
- Mobile iOS/Android focused: for responsive web or desktop, you are off its turf
Best for
- PM or PO wanting a credible mobile mockup to show the team or the build agent, without opening Figma
- Designer prototyping a mobile app fast, wanting to start from correct conventions rather than a blank page
- Vibe-coder wanting to frame the screen before the build prompt, so the AI does not invent the structure