Why Appetite UI

One mobile design system. Every way to ship.

A token-driven Figma system for iOS and Android. Built for designers, founders, and teams who care how their product looks but cannot afford to rebuild the foundation every time.
The problem

Mobile design is harder than it looks. Then it gets harder.

Apple design UI kit for mobile apps

Mobile is the hardest surface

Touch targets, safe areas, gestures, iOS vs Android conventions, dark mode, accessibility. Desktop kits do not solve any of this. Universal kits compromise on all of it.
Cross-platform Mobile app design

Every system locks you in

Most design kits assume one ship path. Code-coupled to Tailwind. Or React Native only. Or just Figma frames. Pick the wrong one and the system fights you when the stack changes.
Appetite UI Button design

Consistency does not survive speed

Without a system, every new screen drifts further from the brand. Six weeks in, your app looks like five different apps stitched together.
The position

Three non-negotiables.

Four mobile app screens showing finance management: sign-in page with social media options, no transactions message with add money button, account setup form with name, email, phone and change password, and dark mode settings with language, currency, notifications, and support options.

Mobile-only

Not a universal kit pretending to handle every surface. Built for thumbs, gestures, and small screens. Every component assumes mobile width before it assumes anything else.
Appetite UI mobile design variable system

A system, not a kit

Two-level token architecture. Primitives at the base, semantic tokens on top. Components share the same foundation, not just the same folder.
Mobile app screen showing Create account page with options to sign in using Apple or Google, and fields for email and phone number input.

Decisions already made

Spacing scale, radius, elevation, type scale, color roles. You inherit the work. You spend your time on the product.
Who it is for

Four people we built this for

The solo founder shipping an MVP

You have a week, not a quarter. You need every screen to feel intentional from day one. Skip the foundation work. Open the file, pick the flows, ship.

The product designer at a small team

You are the only designer. You cannot babysit consistency across sixty screens. The system enforces it for you.
iPhone mockup

The agency prototyping for clients

White-label rebranding through tokens. Same architecture, new brand in an hour. No find-and-replace, no manual sync.

The indie hacker building with AI

You live in Cursor, v0, or Lovable. You ship faster than you used to. You need a system the AI can read and a brand the AI cannot erase.
Built for how you ship

One system. Every ship path.

Most mobile design kits assume one workflow. Either Figma frames for handoff, or React Native components, or AI prompts. Appetite UI sits underneath. The system is the source of truth. How you ship is up to you.
Figma to Apple mobile app design kit

Figma to native iOS

Token names map directly to Swift extensions. Color, spacing, typography, ... Designed alongside Apple Human Interface Guidelines, not against them.
Figma to Android design kit

Figma to Android

Same tokens, mapped to Kotlin constants and Compose-ready theme. Platform conventions baked into the components. Material 3 patterns where they fit, custom where they do not.
Multiplatform app UI design kit

Figma to cross-platform

DTCG-format token JSON drops into React Native, Flutter, or any Style Dictionary pipeline. Same source of truth on every platform. No manual sync, no naming drift.Link
AI mobile design system

Figma to AI tools

The AI Context Pack is a structured markdown spec of the system. Drop it into Cursor, Claude Code, v0, Lovable, or Figma Make. AI output matches your design system on the first prompt, not the fifth.
Same tokens. Same components. Same brand. Whether you handoff to a developer, prompt an AI, or ship the code yourself.
FAQs

Got questions?
Let’s clear them up.

Everything you need to know about the product and billing.
Is Appetite UI a real design system?
Yes. It is a production-grade mobile design system used to ship apps without rebuilding the foundation. Token architecture follows DTCG conventions. Components follow iOS and Android Human Interface Guidelines.
Does it lock me into a specific stack?
No. The system sits in Figma as the source of truth. Tokens export to Swift extensions, Kotlin constants, DTCG JSON for React Native or Flutter, and a markdown spec for AI tools. Pick your ship path.
Can I use it for client work?
Yes. The lifetime license covers personal and commercial use across unlimited projects. Rebrand through the primitive token layer in under an hour.
Why mobile-only?
Mobile is the hardest surface to design well. Touch targets, gestures, safe areas, platform conventions, dark mode. Universal kits compromise on all of these. We do not.
What is included?
The complete Figma file with components, tokens, and screens. The AI Context Pack (tokens.md, cursor-rules.md, DTCG JSON). Lifetime updates.

Is there still something unclear?

Contact us via email at hi@appetiteui.com
Testimonials

Dozens of designers already use Appetite UI

Here’s what they’re saying:
"The outputs I get from our designer are more understandable for development. I recommend it!"
Brano profile picture
Brano Stupak
App developer
“I now design systems and apps much faster and more efficiently. A great investment and a foundation for good app designs.”
Bara profile picture
Bara Liskova
UI Designer
“Appetite UI has helped our develop mobile apps much faster and more efficiently.”
Jan profile picture
Jan Doan
UX Designer
“Our applications is much more user-friendly and gets great feedback thanks to the Appetite UI.”
Vlasta profile picture
Vlasta Phamova
Business owner
"We needed to revamp our mobile banking app fast, and Appetite’s UI kits gave us everything."
Alex profile picture
Alex M.
Product Designer
"The outputs I get from our designer are more understandable for development. I recommend it!"
Brano profile picture
Brano Stupak
App developer
“I now design systems and apps much faster and more efficiently. A great investment and a foundation for good app designs.”
Bara profile picture
Bara Liskova
UI Designer
“Appetite UI has helped our develop mobile apps much faster and more efficiently.”
Jan profile picture
Jan Doan
UX Designer
“Our applications is much more user-friendly and gets great feedback thanks to the Appetite UI.”
Vlasta profile picture
Vlasta Phamova
Business owner
"We needed to revamp our mobile banking app fast, and Appetite’s UI kits gave us everything."
Alex profile picture
Alex M.
Product Designer
Get the full system

No subscription. No seat math. One file you own, forever.

The complete Figma file, all components, all tokens, the full AI Context Pack, every update. One payment, lifetime access.