Start your business with conviction

Try Validator is an independent library of practical guides to testing a startup or product idea before you bet your time and savings on it: customer interviews, smoke tests, MVPs, pricing experiments, the statistics behind them and the odds behind every decision.

Featured guide

Frequently Asked Questions

Confused? We've got you covered.

What does it mean to validate a startup idea?

It means finding the assumption most likely to sink the idea and testing it with the cheapest experiment that could prove you wrong. Validation cannot prove that an idea will succeed; it changes the odds by killing weak ideas early and earning the right to bigger tests. Read the step-by-step method.

How long should idea validation take?

For most ideas the first round takes a few weeks rather than months: a couple of weeks of customer interviews, then a smoke test or a concierge pilot. Set the pass mark before each test so that you know when to continue, change direction or stop. See how a smoke test works.

Can an AI tool score my startup idea out of 100?

AI scorers can produce a tidy 0-100 rating and a useful checklist of questions, but the score is built from text, not from customers. Treat it as a prompt for what to test, never as evidence that people will pay. Can AI score your startup idea?.

What is the cheapest way to test demand?

Talk to people who have the problem about what they did the last time it happened, then put a simple landing page or pre-order in front of strangers. Clicks, sign-ups and deposits tell you far more than compliments. Customer discovery interviews.

Why do you write about betting, poker and casinos?

Every startup is a wager placed under uncertainty. Poker players, sports bettors and casino operators have spent decades thinking about expected value, bankrolls and streaks, and their habits translate directly to testing ideas. Visit the Bets & Odds section.

Is this the Validator app that used to run on this domain?

No. In 2023 tryvalidator.com briefly hosted an AI app that scored startup ideas. It went offline and the domain later changed hands. Try Validator is a separate, independent publication: we do not score ideas, sell credits or hold any accounts from that app. About Try Validator.

Do I need an account to read the guides?

No. Every guide on the site is free to read, with no sign-up, credits or log-in. Browse all guides.

Don't gamble on your startup idea.
Validate it and make data-driven decisions.

Read: how to validate a startup idea →