Separate what you believe from what you know.
Signul is the founder's validation platform. Capture the idea, test it against real people, and know — with evidence — when it's ready to build.
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Pre-launch · early access only
Five phases. One engine.
The loop never stops — the questions change.Read the full methodology →
The most valuable hour a founder can spend.
Not a pitch. Not a survey. Not an opinion on your solution. A conversation with someone who actually has the problem.
Signul gives you the questions to ask, the signals to listen for, and a place to capture what you learn. When someone raises the problem unprompted, the platform flags it. That's the signal that matters most.
Why it works.
Grounded in proven method
Built on The Mom Test, The Lean Startup, and the work of a dozen thinkers who mapped why ventures succeed or fail.
Meet the thinkers →Signal, not opinion
Every conversation is logged against the assumption it tests. Unprompted mentions get flagged — the signal that matters most.
How field contact works →It tells you when
AI agents research your market with traceable sources. The convergence signal fires when the evidence says you’re ready.
See the full methodology →Early access
The clearer you are about what you know, the better everything that follows.
Join the waitlist. We'll reach out when we're ready for you.
You're on the list. We'll reach out when we're ready for you.
Something went wrong. Try again.