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Businesses with an idea

Build the tool your business needs.

Go beyond standard website pages. Describe a calculator, questionnaire, booking system, store or custom web app, and work with your AI designer to build and refine it.

Build my free preview ↗Explore this example

Free to build and share a preview. Publish on your domain for $21/month. Domain registration is separate.

Product system example website homepage
Website starting point: Product system · sample design, not a working app

BUILT AROUND YOUR BUSINESS

AI Web App Builder with room for your ideas.

Start with a useful problem

Explain who will use the tool, what information they enter and the result they need. Give the AI your real rules and examples.

Make the workflow specific

Define each step, validation rule and next action. A quote tool, intake form or booking system should fit the way your business operates.

Connect what is needed

Ask about integrations, payments, messages or data storage. Some services need separate accounts, setup and fees.

Review and keep refining

Try typical inputs and edge cases. Ask for changes, review the result and test the complete workflow before customers use it.

YOUR FIRST STEP

Choose a look. Add your story.

  1. Explore a complete example. Open its interior pages and try the mobile preview.
  2. Make it your own. Add your business facts, photos and offers. Use the editor or ask your AI designer for changes.
  3. Share it, then launch. Get feedback on your free preview. Approve paid hosting when you are ready for your own domain.

Switch included layouts, palettes, headers and footers without re-entering your content or spending AI credits. AI-generated writing, images and development use credit.

Four fresh designs for your business.

Explore four different layouts from our newest collection. Each uses sample content and imagery; open any design to explore its pages.

Browse the full design collection →

BUILD FIRST. PUBLISH WHEN READY.

One website. $21/month.

Build and share a free preview on a Contreol address. Paid hosting adds your custom domain and AI tokens each paid month. Your monthly allowance buys AI tokens at current customer rates on GPT-6 Sol.

Optional email: $2/mailbox/month, with 1 GB per mailbox. Keep your existing email if you prefer.

  • Included design tools and manual edits use no AI credits.
  • One-time AI refills start at $25, buying AI tokens at current customer rates on GPT-6 Sol.
  • Monthly credit expires at the end of its paid cycle; purchased credit and refill bonuses carry forward. Expiring credit is used first.
  • Monthly billing; no annual prepayment is required. Renewals follow the price and schedule you approve.

USD before tax. Domain registration, renewal, payment processing and connected services are separate. Input is what the AI reads; output is what it generates, including reasoning. These are alternative equivalents, not two separate allowances. Real requests use a mix of both. Standard speed. Longer requests, other speeds, models and images use the balance at their own rates. Token amounts reflect current customer prices and update when prices change. See your balance and charges in your account.

How cancellation works · Ask a question

Questions before you start

What kinds of tools can Contreol build?

Examples include calculators, custom forms, questionnaires, stores and booking systems. Describe your requirements so the AI can help plan the implementation.

Does custom development use AI credit?

Yes. AI development is charged against your available credit at the applicable rate. Paid hosting includes monthly credit, and one-time refills are available.

Does the example show a working web app?

The example shows a website design that can be used as a starting point. Your custom app is built around your own requirements and needs review and testing.

See your business in a new light.

Build a preview you can show before you decide to pay for hosting.

Build my free preview ↗