The Smallest Testable Thing

Two founders want to test the same idea: busy parents will pay for weekly meal plans built around what's already in their fridge.

Founder A spends five months building an app — ingredient scanner, recipe engine, grocery integration. Launch day: 60 downloads, 3 subscribers.

Founder B posts in two parenting groups: "Send me a photo of your fridge every Sunday, I'll send you a week of dinners for $15." By Thursday she has 9 paying customers and a list of every question they asked before paying.

Five months versus four days — to learn the same thing.