You have an idea. But is it worth building?
Before you commit €30k+ to building — get one clear answer in 7 days.
Build it, kill it, or change direction. 8–15 real buyer interviews. 80% refund if we're not the fit.
Most teams build first.
Then discover the idea didn't work.
The problem isn't execution. It's that the wrong question was never challenged before the sprint started.
9 in 10
startups fail. In the AI era they fail faster — Cursor and Claude don't fix the underlying mistake. They just let you ship the wrong thing in 6 weeks instead of 6 months.
3–6 mo
of founder time lost — whether you hired an agency, a freelancer, or built it yourself on Cursor. The tool is different. The wasted time isn't.
€5k–€150k
the real cost of being wrong: agency fees or your own time, plus Figma, AI credits, freelancers, and the months you could have spent finding the right idea.
Right now, you're probably
one of these three founders.
The trigger is different. The fear is the same.
About to sign
A dev quote on your desk. €30k–€180k.
The agency is confident. Your gut isn't.
48 hours from signing.
Already been burned
A freelancer ghosted. An offshore team shipped broken code.
You have one more shot.
You can't afford to repeat the same mistake.
Team is split
Co-founder wants to ship. You want to test.
Nobody wants to be the one who asks:
'Are we even building the right thing?'
Either way, you're in the moment Skalora is built for.
Just have a problem space, not a product? You're not ready for Skalora yet — but the free validation checklist will tell you what to do first.
The fit call is free. Day 1 we design. Day 7 you decide.
Fit call + Initial Analysis
Before we start
Output
Shared picture of your riskiest assumptions
We study your idea before we meet. On the call: what the product is, what you believe has to be true, what would make you stop. We leave with a shared map of what needs to be proven — and what would kill it.
Sprint Design
Day 1
Output
Custom validation plan for your case
Every product has different risks. We define what validation looks like for your specific idea: which hypotheses to test, which format — interviews, demand tests, behavior pilot — and what signal means 'stop'. No template. Built around your product.
Validation
Days 2–6
Output
Real signals from real buyers
We go back to point zero — the question of whether this idea deserves to exist. Hypothesis by hypothesis: market interviews, demand signals, competitive teardowns. The work you know you should do but won't.
Decision
Day 7
Output
Build / kill / change direction
We synthesize. You get one concrete recommendation — build it, kill it, or change direction — with the evidence behind it. The kind you can show a co-founder, a spouse, or an investor without flinching.
Who runs your engagement.
Sergei Khaletsky
Product manager. 10+ years across startups, scale-ups, and enterprise. Most recently led product across the SEAL Group venture portfolio.
When you book a fit call, you talk to me. When you sign, I run the sprint. When you get the decision on Day 7, I'm the one who delivers it. No account managers. No junior researcher with my name on the proposal. Founder-led isn't marketing language — it's the only way the sprint stays honest.
Based in Warsaw. Working with founders across Europe and remotely anywhere the buyers are reachable.
LinkedInThe math behind the math.
What you avoid when you validate first.
Agency MVP build
€30k–€150k
4–9 months. Delivered. Maybe works. Probably not what users wanted.
Founding engineer
~20% equity
Permanent. Before you know if the product deserves to exist.
Freelancer who ghosts
Deposit + time
You lose the money. You lose the months. You start over.
Wrong-product launch
The round
You raised against a thesis the market just rejected.
The median cost of being wrong€65kAgency fees, equity grants, or 6 months of your own time — before you learned the market didn't want it.Skalora's full 7-day cycle: €2,700.
What happened when founders stopped guessing.
Anonymised. Real engagements. Real decisions.
Decision: Kill
Killed it. Saved €80k.
(Berlin, Q1 2026)Solo founder, HR-tech SaaS, ex-corporate. Core assumption: HR managers would buy a tool that surfaces at-risk employees early. 8 interviews in 3 days. They wouldn't — not without IT sign-off, not without a 6-month procurement cycle. He was 3 weeks from signing a dev contract.
"Walking away from this saved me a year. The killing wasn't the hard part — it was admitting I'd been chasing a feature, not a buyer."
Decision: Pivot
Hired a contractor. Kept the equity.
(Warsaw, Q4 2025)Non-technical founder, marketplace play, pre-revenue. 7 days from granting 10% equity to a founding engineer. Validation sprint showed 60% of the core product was buildable with no-code tools in 3 weeks. Hired a specialist contractor for the remaining 40%. Still owns 100% of the company today.
City and quarter shown. All other details changed to protect confidentiality. Quotes used with permission.
Four stages. Enter where you are.
Median cost of being wrong: €65k. Full Skalora validation: €2,700.
Every engagement starts from your specific idea — not a template. The hypothesis map, the test plan, the interviews: all built around your product, your ICP, your riskiest assumptions. Enter at any stage, or take the full 7-day cycle.
Not sure which stage fits? Start with a fit call — we'll tell you where to enter.
Stage 1
Hypothesis Sprint
Days 1–2
€1,200
Raw idea → hypotheses → validation plan → first signals.
Stage 2
Evidence Sprint
Days 3–5
€1,700
Real signals from real buyers — not survey opinions.
Stage 3
MVP Definition
Days 5–6
€2,000
What to build, what to cut, and what to say to the people funding it.
Full Cycle · 7 days
Launch Decision
Days 1–7
€2,700
From raw idea to a decision you can show a co-founder, a spouse, or an investor.
Optional add-on
Competitive Analysis
Register inside competing products as an active user. Map what's broken. Find users who churned — and why. Build the answer to "Why not [competitor]?" before you build anything.
Price
€400–900
Timeline
1–2 weeks · async
Each stage builds on the previous. Stage 1 fee is deductible from any follow-on stage.
Kill clause
Within 5 days of kickoff, if you decide we're not the right fit — for any reason — we return 80% of your payment, no questions.
Common questions.
How is this different from just using ChatGPT to research my idea?
AI generates plausible answers based on patterns in training data. It cannot test whether real people will pay for your product. Validation requires real signals — clicks, sign-ups, willingness to pay — collected from actual humans facing an actual decision. We design and run those tests. ChatGPT cannot.
I've already talked to a few potential customers. Do I still need this?
Probably yes. Customer conversations are useful for discovery, but they're not validation. People are polite. They say 'yes, I'd use that' and then don't. Validation tests behaviour, not stated intentions. If you've done interviews but haven't tested real demand, you have insights — not validation.
How is this different from talking to customers myself?
You should. You probably won't — at the depth or frequency that matters. Most founders read The Mom Test and never actually run 12 cold interviews in a week. Every hour of building feels productive; every hour of validation feels like flailing. We run the discipline you know you should but won't.
7 days · A decision you can defend
You'll either be
building the right thing —
or saving yourself from the wrong one.
Either way, you'll know.