AppLessWhat if your phone had no apps?

Ask for what you need. AppLess creates a native interface for the task, then builds the next screen when you tap.

Explore GitHub

AppLessWhat if your phone had no apps?

Ask for what you need. AppLess creates a native interface for the task, then builds the next screen when you tap.

Explore GitHub
Order dinner nearby
Time to render
OpenUI LangSource
Live preview
Render traceOUI-1
Time to render
  1. 0.00sUser asked a queryOrder dinner from nearby
  2. 0.16sOUI-1 started writing OpenUI Lang
  3. 0.48sHeader rendered
  4. 0.64sFilter chips rendered
  5. 0.80sCategories rendered
  6. 1.44sSection title rendered
  7. 1.60sList rendered
  8. 2.24sButton rendered
  9. 2.24sInterface ready
Order dinner nearby
Time to render
OpenUI LangSource
Live preview
Render traceOUI-1
Time to render
  1. 0.00sUser asked a queryOrder dinner from nearby
  2. 0.16sOUI-1 started writing OpenUI Lang
  3. 0.48sHeader rendered
  4. 0.64sFilter chips rendered
  5. 0.80sCategories rendered
  6. 1.44sSection title rendered
  7. 1.60sList rendered
  8. 2.24sButton rendered
  9. 2.24sInterface ready

AppLess explores a future where software takes shape around your intent. It’s an open-source experiment you can fork, extend, and connect to real services.

Order dinner nearby
Customize my pizza
Add pizza to cart
Checkout my order
Order dinner nearby
Customize my pizza
Add pizza to cart
Checkout my order
Order dinner nearby
Customize my pizza
Add pizza to cart
Checkout my order
Dinner nearbyDelivered to Home
All foodPizzaSushi
Pizza · ItalianLuigi’s Hearth 4.7(500+)20–30 min · $2.99 delivery
Sushi · JapaneseSakura Zen 4.8(320+)25–35 min · Free delivery
Luigi’s Hearth · Pizza
Truffle Mushroom$25.00

Wood-fired crust, roasted mushrooms, mozzarella, and truffle oil.

4.7 18–20 min
Extra truffle oil +$2.00
Your cartLuigi’s Hearth
Truffle Mushroom Pizza12-inch · Extra truffle drizzle$25.00
Subtotal $25.00Delivery $2.99Total $30.11
Checkout
CheckoutLuigi’s Hearth
Arriving in 18–20 min422 West 14th St
Home 422 West 14th St
PaymentVisa ···· 4822

Just ask

From a weather dashboard to a booking form, describe the task and watch the screen appear.

Keep exploring

Tap a row, button, or card to generate the next screen.

Instant next screens

Prefetch makes the next likely screen appear at lightspeed.

iOS Cupertino Android Material 3
ListsShopping listDone
Shopping list

Sunday dinner

Everything for a good evening.

To buy 4In basket 2
Cherry tomatoes250 g
Fresh mozzarella2 balls
Sourdough1 loaf
Basil1 bunch
Olive oil3 tbsp
Sea salt1 pinch
Remind meWhen I arrive at the store
Add item
Shopping list

Sunday dinner

Everything for a good evening.

To buy 4In basket 2
Cherry tomatoes250 g
Fresh mozzarella2 balls
Sourdough1 loaf
Basil1 bunch
Olive oil3 tbsp
Sea salt1 pinch
Remind meWhen I arrive at the store
Add item

Native on your phone

Interactive components render as Cupertino on iOS and Material 3 on Android.

Powered by OUI-1

OUI-1 is a model purpose-built for Generative UI. It generates the interface in OpenUI Lang, and OpenUI renders it into native components as it streams.

Meet OUI-1

Run AppLess yourself.

Read setup docs
  1. 1

    Get the app

    Clone the repository and install its dependencies.

  2. 2

    Start OUI-1

    Serve OUI-1 on your GPU with vLLM.

  3. 3

    Launch and ask

    Set your server address, launch on iOS or Android, and ask for a screen.

Frequently asked questions

Have another question?
Join our Discord.

What is AppLess?

AppLess is an open-source experiment in a phone without apps. Describe a task and it generates a native interface. Tap a row, card, or button to generate the next screen.

Can it place orders, book trips, or send payments?

Those actions are simulated. AppLess has no real service integrations behind them yet. Fork the project and connect your own tools to turn a generated screen into a working service.

Does OUI-1 run on my phone?

The native app connects to OUI-1 running on a GPU host through vLLM. The phone renders the interface; it does not run the model inside the app.

Does AppLess use real information?

Optional web and image tools can bring real places, prices, news, and photos into screens. Without those tools, the model generates sample content. Actions remain simulated until you add integrations.

Does it work on iOS and Android?

Yes. One component contract renders as Cupertino on iOS and Material 3 on Android. The same generated interface uses the native design system for each platform.

Can I customize it?

Yes. AppLess is MIT licensed. Fork it, add components to its contract, and connect tools for your own data and actions. The README includes setup instructions and integration ideas.

No apps. Just intent → interface.

No apps to install. No menus to learn. No screen cluttered with countless app icons.

Explore GitHubRead the setup guide