From a loose idea to a business up and running.
For anyone who wants to start a business and doesn't know where to begin. An AI team finds ideas tailored to what you already have, tests them against real market data, and builds your online business with you, no coding required. And if your idea doesn't hold up, it tells you before you lose months.
It's not another AI that cheers everything on. It's the critical partner that tells you the truth before you lose months.
No card required · your first idea costs nothing · start today
Wherever you're starting from
Starting out alone is dizzying.
It doesn't matter where you're starting from.
Most people don't fail for lack of drive. They fail by starting with the wrong idea, or by never starting at all. Whether you arrive with no idea, a half-baked one or everything ready, the method meets you where you are.
“I don't know what to build”
We start from what you already have: your time, your contacts, a skill. The radar crosses your assets with markets where there is room today and proposes ideas tailored to you, with the why behind each one.
“I have an idea, I don't know if it's good”
Before you spend a euro, a critical mentor takes it apart and the market study tests it against real data: measured demand and actual competition. You bet with judgment, not with wishful thinking.
“Ready to launch”
We build your launch plan and the Studio builds your online business with you: a real product, deployed, without you knowing how to code.
The method, up close
Discover · Validate · Build
Three moves, in order. First we find an idea that fits you. Then we test it with real data. And only then do we build it.
Discover
Ideas made for you, not generic ones.
The radar crosses what you have, hours, contacts, a skill, a budget, with markets where there is room today. It doesn't dump a list of trends on you: it proposes paths YOU can walk, with their fit and the why.
- ✓Starts from your real resources, not from zero
- ✓Fit scored in bands, based on honest assumptions
- ✓The why behind each idea, not just the what
Ideas made for you
Invoicing micro-SaaS for freelancers
High fit ★★★based on assumptions
Monetized padel newsletter
Medium fit ★★based on assumptions
Candle dropshipping store
Low fit ★based on assumptions
Validate
A mentor who knows how to say NO.
The critical mentor takes the idea apart and, when you need to go further, the premium study measures the truth of the market: how many people already search for this and how much competition exists in your area. If it does not hold up, it tells you to your face.
- ✓A real NO, with reasons, not a round of applause
- ✓Every claim labeled: fact, assumption, or estimate
- ✓The cheapest test to settle the doubt
Critical mentor
Today I'd say NO. The idea depends on people paying for something they already do for free: that is an assumption, not a fact.
What would have to be true
·10 people who pay before you build
·A channel where people are already looking for this
Cheap test: a waitlist landing page and €30 in ads. If nobody leaves their email, you just saved yourself three months.
Build
From a plan in a PDF to a working business.
If the idea holds up, we build your Venture Blueprint: a phased launch plan and ready-to-use briefs. And the Studio makes it real: you talk, it defines the requirements and builds your actual online product, with its code in your own repository. No coding needed.
- ✓Phased launch plan, with briefs per business type
- ✓From conversation to spec, from spec to product
- ✓No coding needed: the Studio does the technical work
Venture Blueprint
ReadyValidation landing page
Minimum product (no-code)
First 10 customers
The Studio builds and deploys your product. You decide what; it solves the how.
Measured truth
Your brother-in-law has opinions. Markets have data.
The premium market study does not ask an AI what it thinks of your idea. It goes and gets the data: how many people already search for what you want to sell, whether demand is rising or falling, and how much real competition you have in your area.
Real search demand
Volume and trend of what people already search for, measured, not guessed. If nobody searches for it, you will know before you spend.
Competition on the map
The businesses already competing with you in your area, with Google data. And if there are many, that is not a no: it is a validated market asking for your angle.
Downloadable report
The whole study in a report with your brand, free to keep. Show it to anyone you want.
Never a NO based on a single metric. A small niche inside a strong category is an opportunity, not a rejection.
How it works
From a loose idea to your first customer
Five milestones. Without skipping validation, which is exactly where most people save themselves the expensive mistakes.
Starting point
Tell us what you've got: your hours, your contacts, what you're good at, and how much you can risk. That's the foundation for everything.
Ideas made for you
The radar crosses your assets with markets where there is room today and proposes 3 to 5 paths. Each idea arrives with its fit band, its first experiment and the why.
Your idea gets challenged
The critical mentor turns it upside down: what assumption it rests on, what would break it, and what would have to be true.
Put it to the test
We give you the cheapest test to settle the doubt before you invest time or money. Validate first, build after.
Launch plan
If it holds up, we build your Venture Blueprint and the briefs. And when you want to build, the Studio turns the conversation into your online product, deployed.
Our contract with you
An honest partner, not automatic applause.
✓The method can tell you NO
If the idea doesn't hold up, we'll tell you. We'd rather save you months than sell you smoke. An honest NO in time beats a comfortable yes.
✓Banded scoring, not a bare number
You will see "High fit, based on assumptions", not a fake 87/100. An exact number for an idea with no data is theater; the band is honest about what we know.
✓Every data point, labeled
Fact, assumption or estimate. You know where every claim comes from before betting on it, without mistaking a real data point for a hunch.
✓Guidance, not advisory
We guide you to get started; legal and tax matters go to a professional. We don't ask for sensitive data we don't need.
Pricing
Start for free. Upgrade when you're serious.
Your first idea costs nothing. When you want to validate it deeply and build, you upgrade to Funda.
Explore
0€
to discover your idea
- ✓Starting-point diagnosis
- ✓AI Mentor to discover and pick 1 idea
- ✓Fit bands (not a bare number)
- ✓100 credits a month
Found
Recommended29€/mo
to validate and start building
- ✓Everything in Explore, without annoying caps
- ✓Ideas made for you + critical mentor
- ✓Validation plan and interpretation
- ✓Market study + Venture Blueprint
- ✓900 credits a month
Build
59€/mo
to go all in on several ideas
- ✓Everything in Found
- ✓Several ideas in parallel
- ✓Premium studies: measured demand and real competition
- ✓Studio: your product built and deployed
- ✓1,800 credits a month
Launch prices · credits cover the intensive work: ideas, market data, validation and briefs
Don't wait for the perfect idea
The perfect idea doesn't come from thinking. It comes from testing.
Every month you put it off is a month without data, without signal and without a first customer. Create your free account and let the radar propose your first idea today. No card, no commitment, and with a mentor that will tell you the truth.
Discover my idea for free →Frequently asked questions
What people usually ask
What if I don't have any idea at all?
That's exactly what this is built for. We start from what you already have: your time, your contacts, a skill, a budget. The radar crosses your assets with markets and proposes ideas tailored to you. You don't need to arrive with an idea: you need the will to find one.
How is this different from asking ChatGPT?
Three things. One: ChatGPT will tell you all your ideas are great; here the critical mentor can tell you NO, with reasons. Two: we don't guess about the market, we measure it, with real demand and competition data. Three: you don't walk away with a wall of text, you walk away with a plan and a built product. The difference is the critique, the data and the outcome.
Where does the market study data come from?
From real sources, not an AI's memory. We measure how many people already search for what you want to sell, with real search volumes and trends, and what competition actually exists in your area using Google data. With honest rules: we never give you a NO based on a single metric, and heavy competition isn't a rejection, it's a market that already pays and is asking for your angle. The full report is a free download.
What is "band scoring"?
Instead of making up an "87/100" for an idea with no data behind it yet, we tell you which band it falls in: high, medium or low fit, always marked "based on assumptions". An exact number without data is theater. The band is honest about what we actually know.
Does it really build my business?
Yes. The Studio isn't a tutorial: you talk to it, it turns the conversation into a requirements spec and builds your actual product, with real code in your own repository, deployed and yours. No coding needed. You decide what gets built; it handles the technical side. What we won't do is promise the product will sell itself: that gets validated first, and that's what the rest of the method is for.
Does this guarantee my business will work?
No, and distrust anyone who promises that. What we do is remove the expensive early mistakes: ideas with real fit, critique before you spend, market data and a launch plan. The market's yes is yours to earn; we make sure you're not betting blind.
How do credits work?
Credits cover the intensive work: generating ideas, the mentor's critique, market studies, validation and briefs. Your plan gives you a monthly allowance, and some tools cost nothing, like the MVP numbers calculator or the first-customers playbook. Every action shows its cost before running, no surprises.
Do I have to pay to start?
No. The Explora plan is free and asks for no card: a starting-point diagnosis, the Mentor to discover your idea, band scoring and 100 credits a month. You only upgrade to Funda when you want to validate deeply and build.
What happens once my idea is validated?
You graduate. A worked idea, validation executed with a positive signal and a launch plan in place: with that you move up to Accelerator, FirstStone's next product, to grow and sell. And the ecosystem's best companies get taken to Capital, to the table with the right investors. One account for the whole journey.
Do you provide legal or tax advice?
We help you get started, but legal and tax matters go to a professional. We're not your lawyer or your accountant, and we don't ask for sensitive data we don't need. When something requires an expert, we tell you to see an expert.
IncubatorStart by discovering your idea.
Create your free account and start today. A starting-point diagnosis, your first tailored idea and a critical mentor that will not sugarcoat it. No card required.
The Studio builds and deploys with you, step by step; legal and tax matters go to a professional.
FirstStone walks with you at every stage: from a loose idea to raising a round. One account for the whole journey.