SignalBench runs a real paid ad campaign on your idea, measures who actually wants it, and returns a demand verdict by Friday. $49. No code.
Sample feed · Anonymized · Illustrative
You bring the idea. We handle the ads, the landing page, and the measurement. By Friday you'll know whether real strangers want what you're planning to build.
One sentence is enough. No deck, no prototype — just the premise and who you think it is for. We draft the ad copy, audience, and landing page from there.
SignalBench pushes a real campaign to Google Search, Meta Feed, or TikTok — inside a hard spend ceiling you set. Real strangers start seeing it within the hour.
On Friday you get a single score — strong, mixed, weak, or inconclusive — with the raw numbers, the benchmark, and a written interpretation of what happened.
of failed startups say the reason was that nobody actually wanted what they built.
CB Insights · Top Reasons Startups Fail · 2024
“The product worked.
Nobody wanted it.”
It's the single most common line on the graveyard of startup post-mortems. By the time someone writes it, months of work and real money are already gone. SignalBench exists to move that sentence to the front of the calendar — before you write a line of code.
Every experiment ends with the same standardized report — in plain English, with the raw numbers underneath and a written interpretation of what the evidence actually tells you.
How many real strangers actually saw your ad. We target a sample large enough to produce statistically legible results, not vanity numbers.
Share of viewers who clicked through to your landing page. We benchmark your rate against the WordStream 2025 B2B search average (≈ 2.4%) so you can tell a strong idea from a weak one.
How long visitors stuck around on the landing page before leaving. A click is cheap; a read is expensive. This is the first attention signal that a stranger cares.
Share of visitors who handed over an email, booked a slot, or pressed the primary call-to-action. The single most predictive number in the whole experiment.
How much it cost to acquire one interested stranger. A number you can use directly to sanity-check whether this idea could ever be a business.
A composite score from 0 to 100 that summarises everything above into one answer — strong, mixed, weak, or inconclusive — against our historical distribution of past experiments.
SignalBench integrates with Google Ads, Meta Ads, and TikTok Ads — platforms with strict review bars. Our stack is designed so their reviewers, and your compliance team, can check our work.
Public privacy policy describing every class of data we handle, every third-party processor, and our retention windows.
Any account holder or lead can request full erasure. A public data-deletion endpoint is documented for platform review.
All traffic is served over HTTPS with HSTS. Internal service-to-service calls are authenticated with short-lived tokens.
OAuth credentials, API keys, and platform tokens live in Google Cloud Secret Manager with tight IAM bindings and audit logging.
Every mutation on a campaign, asset, or lead is recorded with actor, timestamp, and diff — exportable on request.
Our creative generator refuses prohibited verticals (adult, weapons, deceptive schemes) at the prompt layer. Platform policies come first.
Your first experiment is $49 and launches within an hour of your approval. Come back Friday with evidence.