BuildrPowered by SmartGrants

Buildr suite

Describe it. Watch it get built.

Write what your app should do. We plan it, write the code, and show you a working preview you can keep refining in conversation.

Enter adds a new line. Press Ctrl (or Cmd) + Enter, or use “Start building”.

You keep your prompt: sign in and it lands straight in the builder.

One idea, published three ways

See how one original idea can become a listing on Google Play, a product page on the App Store, or a storefront on the web.

  • Google Play

    A familiar Android store destination.

  • App Store

    A clear iPhone product destination.

  • Web

    A responsive storefront in the browser.

Illustrative mockups only. These are not real store listings, customer apps, or endorsements by Apple or Google.

A shelf of apps, ready to feel real

Explore complete fictional app screens for coaching, learning, money, music, community, cooking, and habits—each shaped by a different design style.

Four steps, start to store

The same loop whether you are building a landing page or a mobile app.

  1. 01

    Describe

    Write a few sentences about what the app does and who uses it. No diagrams, no setup.

  2. 02

    Generate

    We pick the model, write every file, and render a live preview next to the conversation.

  3. 03

    Refine

    Ask for one change at a time. Small, precise requests cost fewer credits and land more accurately.

  4. 04

    Publish

    Share a frozen preview link, download the source, mirror it to GitHub, or prepare a store listing.

What you get

Everything below exists in the product today.

Four build targets

Web apps, iPhone and Android apps built with React Native and Expo, and 2D or 3D games — chosen per project.

Eight design styles

Pick a visual direction in a word or two, or let your prompt suggest one. It is a starting point, never a lock.

Model choice and Auto

Auto picks a model per task on every plan. Paid plans turn that into a real picker, with a longer-planning option on the top tier.

Live preview

Every generation renders beside the chat, on a device frame for mobile targets, so you see the result as it lands.

Shareable previews

Publish a frozen snapshot to a link you control. Private shares follow the invited email address, so forwarding the URL grants nothing.

Your own API keys

Store keys for any service in an encrypted vault, attach them per project, and keep them server-side and out of exported code.

Code export

Download the whole source as a ZIP. Public configuration is included; private keys never are.

GitHub sync

Mirror a project into your own repository and keep working from there whenever you want to.

Services you can connect

Bring your own key for any of these. What each one enables is described in the docs.

  • SupabaseSupabase
  • StripeStripe
  • RevenueCatRevenueCat
  • App Store ConnectApp Store Connect
  • Google PlayGoogle Play
  • GitHubGitHub
  • ExpoExpo
  • FigmaFigma
  • OpenAIOpenAI
  • AnthropicAnthropic
  • Google AIGoogle AI
  • Mistral AIMistral AI
  • GroqGroq
  • ElevenLabsElevenLabs
  • ReplicateReplicate
  • PerplexityPerplexity
Read the integrations guide

Credits, not seats

Every plan includes free daily build credits. Paid plans add a monthly allowance that rolls over.

Honest answers

Start with one sentence

Creating an account is free and includes credits to build your first app today.

Create your accountRead the quick start