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PMF Survey is the "Sean Ellis test" for product-market fit. You ask users "How would you feel if you could no longer use this product?" If 40% or more say "very disappointed," you've likely found product-market fit. Below 40% means you need to keep iterating.
The "Sean Ellis test" for product-market fit. You ask users "How would you feel if you could no longer use this product?" If 40% or more say "very disappointed," you've likely found product-market fit. Below 40% means you need to keep iterating.
The simplest version of your product that still solves the core problem. Ship fast, learn from real users, then improve. Don't build everything at once.
A small test to prove an idea actually works before investing serious time or money. It's not a product—it's evidence that building the product makes sense.
A working model of your product used for testing and feedback. It doesn't need to be pretty or complete—it needs to let people interact with your idea.
A basic sketch showing the layout and structure of a page without any design polish. Think blueprint, not finished building. It's about where things go, not how they look.
A high-fidelity visual design showing exactly how the final product will look. Unlike wireframes, mockups include colors, typography, and real content.