How to validate a startup idea in 14 days
A practical two-week process to find out whether anyone will pay for your idea, before you write a line of code.
Most failed startups did not fail because the software was bad. They failed because nobody needed it enough to pay for it. Validation is how you find that out cheaply.
This is the shape of the two-week process we use. You can run it yourself.
Days 1–2: Write down what you are actually betting on
Every idea hides assumptions. Write them as plain sentences:
- Who has this problem? (Be specific: "owners of 2–10 person dental clinics", not "small businesses".)
- What is the problem, in their words?
- How do they solve it today?
- Why would they switch, and pay?
Circle the riskiest assumption. That is what the next two weeks are for.
Days 3–5: Desk research
Look for evidence that the problem is real and that money is already moving around it.
- Search for how people describe the problem: forums, reviews of existing tools, job posts.
- List every alternative, including spreadsheets and "do nothing".
- Read the one- and two-star reviews of competitors. That is a free list of unmet needs.
Competitors are good news. They prove someone pays. No competitors at all usually means no demand, or that you have not looked hard enough.
Days 6–10: Talk to ten real people
This is the part founders skip, and the part that matters most.
- Find ten people who match your "who". Ask for 20 minutes.
- Ask about their past behaviour, not your idea. "Tell me about the last time this happened. What did you do?"
- Do not pitch. If you have to explain the idea first, you are not learning, you are selling.
- Listen for emotion and for money already spent on the problem.
You are looking for a pattern across several conversations, not one enthusiastic person.
Days 11–12: Test willingness to pay
Opinions are cheap. Commitment is the signal. Pick the strongest version you can without building the product:
- A landing page with the promise, the price and a "pre-order" or "join waitlist" button.
- A mock-up or clickable prototype shown in a call, followed by an actual price.
- A manual version of the service you do by hand for a few customers.
The question to answer is simple: did anyone give you money, time or a firm commitment?
Days 13–14: Decide
Write one page with:
- What you believed at the start
- What you learned (quotes beat summaries)
- A clear call: go, change, or stop
Stopping is a good result. You just saved months.
A simple scorecard
| Signal | Strong | Weak |
|---|---|---|
| Problem | People describe it unprompted, with emotion | You had to explain it |
| Current spend | They already pay money or time | "Nothing, it's fine" |
| Commitment | Pre-order, deposit, signed intent | "Sounds interesting" |
| Reach | You can name where to find 100 such people | "Everyone" |
If most rows are weak, change the idea or the audience before you build.
Want help running it?
This is exactly what our Idea Validation Sprint does: two weeks, fixed scope, ending in a go / no-go with evidence behind it.
Want this applied to your business?
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