Two builds run in parallel. On the left, someone chats with an AI: it builds a dashboard instantly, but it is not quite right, so they prompt again and again while the result drifts further from what they pictured, until it falls apart. On the right, an engineer first brainstorms, writes a PRD, chooses the tech stack, and defines the architecture — then sends one well-briefed prompt, and the components click precisely into place as a production-grade product.

An app idea, but no tech team? Start here.

Turn your idea into a working prototype you can actually see — free, in minutes, no code. Like it? A real engineer builds it into something your customers can use.

10 prototype credits · no card required · keep your saved projects

01 Describe Your Idea 02 Generated Prototype 03 Talk to Real Engineer 04 Final Product
Describe what you want to build

The part the prompt cannot own

AI shows you a demo. We build you the real thing.

Prototype

Get the idea out of your head.

Describe what you want in plain words. TemanBuilder turns it into a working prototype with realistic sample data — so you can see and test the direction before spending on a build.

Your business

Built around how your business actually works.

Roles, approvals, currencies, local rules, and the way your customers really behave belong in the product — not in a generic template.

Engineering

Turn the demo into a real system.

Real data, logins, payments, integrations, and going live safely need an engineer who makes the trade-offs and stands behind them.

A human, when it matters

Know when AI is out of its depth.

A real engineer challenges the AI’s approach, makes the calls AI can’t, and steps in before a prototype becomes a production risk.

Simple starting points

Start with AI. Add a real engineer when it matters.

Every tier can add generation credits. The difference is who — or what — keeps the work on track.

Free tier

Early access

$0 to start

Turn an idea into something you can see, use, and talk about.

  • 10 generation credits
  • Prompt-to-prototype generation
  • Interactive UI with realistic sample data
  • Saved project workspace
  • Improve it prompt by prompt
Start building

Human + AI Cowork

from $99 /month

A real engineer who understands what you need, directs the AI, and stays accountable for the decisions that matter.

  • Everything in Free
  • Extra AI credits whenever you need them
  • Talk directly with a real engineer
  • Real questions instead of AI guesses
  • Engineer-written briefs and acceptance criteria
  • Architecture and best-practice review
  • A human steps in when AI output is uncertain
  • Hands-on delivery quoted separately
Hire an engineer

Questions

What exactly is TemanBuilder?

A prompt-to-prototype builder. Describe an app in plain language and it returns a single-file working UI with realistic sample data. It is for testing an idea, not bypassing production engineering.

Is the prototype production-ready?

No. The Free tier is designed to prove the workflow and interface using sample data. Production work requires decisions about data models, user permissions, integrations, security, deployment, monitoring and maintenance. Human + AI Cowork brings in an engineer to make and verify those decisions with you.

Which AI model generates the apps?

TemanBuilder is designed to work across multiple models rather than depend on one provider. Right now, prototypes are generated using Google's Gemini models, chosen for the best prototype quality; the builder will adopt additional models as they meet that bar. The separate AI Consultant, for questions and email drafts, already draws from a wider set of providers.

What does it cost to start?

The Free tier starts at $0 with 10 prototype credits. Human + AI Cowork starts at $99/month. Additional generation credits can be added to either tier, while larger implementation work is scoped separately after the engineer understands the product.

How do I take a prototype live?

Start by sharing the prototype and the business outcome with your engineer. We clarify users, permissions, data, integrations and operating risks, then turn that into an implementation plan. The $99/month entry plan covers ongoing human guidance; larger delivery work is estimated separately before development begins.

What does the real engineer actually do?

Your engineer asks follow-up questions, converts business rules into technical requirements, challenges unsafe assumptions, reviews the AI-generated approach and defines acceptance criteria. They also help decide what should be automated, what should stay manual and when specialist engineering work is needed.

Will the engineer build the whole application for $99/month?

No. The starting plan gives you consistent access to an engineer for direction, review and product decisions. Hands-on development, integrations, migration, testing or deployment are scoped separately based on the actual work. You see and approve that scope before delivery starts.

Can you work with an app I already generated elsewhere?

Yes. Bring a prototype or codebase made with TemanBuilder, ChatGPT, Claude, Gemini, Lovable, Bolt or another tool. We review what is reusable, identify production risks and recommend the shortest responsible path forward.

Who owns the product and generated work?

Your project remains yours. Ownership, repository access, infrastructure accounts and any third-party licensing are documented during onboarding and in the delivery scope. We avoid locking production systems inside accounts that your company cannot control.

Can TDI support the product after launch?

Yes. Depending on the product, we can scope monitoring, bug fixes, improvements, infrastructure support and continued engineer guidance. Support terms are agreed from the real operating needs rather than bundled into an unclear unlimited promise.

Already made something with AI?

Bring the prototype. We’ll help you decide what’s reusable, what’s risky, and what it takes to run for real customers.

Make it production-ready