MVP vs. Prototype vs. Proof of Concept: What's Actually the Difference?
These three terms are often used interchangeably, but they mean different things and serve different purposes. A proof of concept tests whether something is technically feasible. A prototype tests whether a solution is usable and understandable. An MVP tests whether a product is something people will actually adopt and pay for. Knowing the difference helps you choose the right tool for the question you are trying to answer.
What a proof of concept is
A proof of concept, sometimes abbreviated as PoC, is the most minimal of the three. It exists to answer a single technical question: can this be built? It is not meant to be usable, scalable, or attractive. It is a demonstration that a technical approach is viable.
Proofs of concept are most common in engineering contexts where there is genuine uncertainty about whether a technical approach will work. For most consumer and business apps, the core technical approach is not in question, the question is whether people want the product, not whether it can be built.
What a prototype is
A prototype is a representation of your product that allows you to test usability and understanding. It may look like a finished product but not function like one. The most common form is a clickable mockup, screens designed in a tool like Figma that a user can tap through to simulate the experience of using the app.
Prototypes are excellent for testing whether your user experience makes sense. They answer questions like: Can users find what they are looking for? Does the flow make sense? Is the language clear? They do not answer questions about whether people will pay for the product or use it regularly.
What an MVP is
An MVP, minimum viable product, is a functional product stripped down to the fewest features needed to test whether people will adopt it. Unlike a prototype, it actually works. Unlike a full product, it intentionally excludes features that are not essential to the core value proposition.
The purpose of an MVP is to generate real usage data: do people come back? Do they pay? Do they refer others? These questions require a working product, which is why an MVP is the right tool when you have already validated the problem and are now testing the solution.
Which one do you need?
If you are asking "can this be built?", proof of concept. If you are asking "does this experience make sense to users?", prototype. If you are asking "will people actually use and pay for this?", MVP. Most founders need a prototype before they need an MVP, and many do not need either until they have validated the problem through research.
From Passion to Product walks through these distinctions as part of a practical app strategy curriculum. It is free, and the next cohort starts May 25, 2026.
