FREE INSTRUMENT NO. 06 · 90 SECONDS · NO SIGNUP

Idea Sanity Check.
Five questions. One score.

Most founders skip the “is this worth building” check. We've seen the cost. Here are the five things we look at on every brief before we put a maker on it.

Q1 OF 5 · Proof of demand

Have you found people who say they would pay for this?

Wishlist signups don’t count. We mean specific people, by name, who said yes.

Q2 OF 5 · Clarity

Can you describe the product in one sentence?

A founder you just met at a coffee shop. One breath. They get it.

Q3 OF 5 · Positioning

Do you know your top 3 competitors and how you differ?

"We have no real competitors" is almost always a red flag — it usually means there’s no proven demand.

Q4 OF 5 · Definition

Have you mocked the core flow as a clickable prototype?

Figma click-through, Framer prototype, even a static HTML mock. Anything walkable.

Q5 OF 5 · Distribution

Can you name the first 50 customers — by name or persona?

If "everyone" or "anyone with X" comes to mind, the answer is no.

0 / 5 answered