ValidationProven Pattern

Presell to 5+ customers at steep discount before building to validate willingness to pay

After generating waitlist interest, offer a 90% discount presale to all subscribers. If you can get 5 paying customers before building anything, you have validated that people will pay for the solution, not just express interest. This separates real demand from curiosity.

When to use

When you have waitlist signups (100+) from sharing your problem publicly and want to validate that people will actually pay before investing time building

Don't do this

Building based on waitlist signups alone without collecting money—people say they want it but won't pay when it exists

4 Founders Who Did This

1
Portfolio of 26 startupsby John Rush

After getting 100 waitlist signups, emails everyone offering 90% discount presale. Only builds the MVP if he gets 5 sales

Result:Validates willingness to pay before writing code, using presales as financial validation gate
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2
Escape room marketing toolby Marc Lou

Sent cold emails pitching a tool that didn't exist yet. Got on a 42-minute sales call, described the solution, and the prospect said 'send me the invoice I'll pay' without seeing any product.

Result:Got his first dollar online before writing any code. Validated demand exists and learned that preselling works. Grew to $4K MRR.
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3
GameWidget (Escape Room Marketing Tool)by Marc Lou

Cold-emailed an escape room owner in Australia, pitched a tool that didn't exist, got on a 42-minute sales call where the prospect said 'send me the invoice' without seeing any product

Result:Earned first dollar online ($300 upfront + $99/month) before writing any code, validating willingness to pay and demand
4
Portfolio of 26+ startupsby John Rush

After getting 100 waitlist signups, emails everyone offering 90% discount presale. Only builds the MVP if he gets 5 paying customers

Result:Validates willingness to pay before writing any code, using presales as a financial validation gate