Stop doubting.Start knowing.
Most builders never start — not because the idea is bad, but because doubt wins. €4.99 buys you certainty. Doing nothing costs everything.
The cost of skipping validation
7 ways founders waste
months of work
01 / 07
Months of wasted work
The average failed startup spends 6–18 months building before realising nobody wants it. That's your evenings, weekends, and savings gone.
The process
How it works
Drop your idea
One sentence is enough. Type what you want to build — we handle everything else.
AI does the research
Claude searches the web, stress-tests your assumptions, and scans what competitors are actually saying.
Unlock your report
Pay once — €4.99. Get a brutal 7-section report: verdict, real competition, who pays first, and your first 10 customers.
Not AI guessing. Actual research.
5 live searches.
Every single report.
While ChatGPT recalls training data from a year ago, FounderCheck runs real web searches the moment you submit — on sources that actually matter.
Competitor scan
ProductHunt, IdeaBrowser, and the open web — real products, live pricing, feature lists. Not guesses.
Reddit demand check
Real buyer conversations on Reddit — who's asking for this, how often, and how desperately.
X / Twitter pulse
What founders and early adopters are posting about your space right now — not a year ago.
Graveyard + pricing
Who tried this before and why they died. Plus what the market already pays, so your pricing isn't a coin flip.
10
live searches per report
<60s
to generate
100%
real-time data
7
sections, zero fluff
This is the research a good co-founder would do in a week.
We do it in under a minute. For €4.99.
The deliverable
7 sections of brutal honesty.
See it in action
A real report,
right here.
This is what you get for €4.99. Seven sections. Zero fluff. Built to help you decide before you build.
Idea submitted
"An AI tool that turns meeting recordings into clean summaries and action items — built for solo consultants"
Strong demand signal, clear buyer, solo-buildable MVP. Existing tools target enterprise — the freelance gap is wide open and underserved.
This is what €4.99 actually looks like
The cost of staying stuck
What builders say
I was about to spend 3 months building a project management tool. FounderCheck told me the market was saturated and showed me 8 direct competitors I didn't know about. Saved me an entire quarter.
Alex M.
Indie hacker, shipped 4 products
The 'Who Pays First' section alone was worth €4.99. It gave me a specific persona, the exact subreddits to find them, and what they'd actually pay. I went from no idea where to start to having 3 paying customers in 2 weeks.
Sarah K.
Solo founder, SaaS builder
ChatGPT told me my idea was great. FounderCheck told me it was a KILL — and explained exactly why. Brutal, specific, and 100% right. I pivoted the same day and the new direction is way stronger.
Tom R.
Vibe coder & solopreneur
Pricing
One idea or many?
Pay once per report, or go unlimited if you're iterating fast.
One-shot
- 1 full validation report
- Live web research
- 7-section deep analysis
- Permanent report URL
- No account needed
Validator Pack
Unlimited reports · validate as fast as you think
- Unlimited reports per 4 weeks
- All one-shot features included
- Credits tied to your email
- Reports unlock instantly
- Cancel anytime
All payments via Lemon Squeezy · Secure checkout · No hidden fees
Common questions
Straight answers.
No jargon. Just what you need to know before you validate your next idea.
Still unsure?
Ask us directly →