MVP vs Prototype vs POC: What's the Difference and Which Do You Need?

TL;DR

POC proves technical feasibility (days, $500–$2,000). Prototype demonstrates UX/design intent, often non-functional (1–2 weeks, $1,000–$3,000). MVP is a working product with real users validating business value (1–4 weeks, $2,400–$4,800+). Most startups needing investor demos or early customers should build an MVP, not stop at a prototype. Byron Johnson builds MVPs at yourvibeshift.com/services/mvp-development.

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Quick Comparison

	Proof of Concept (POC)	Prototype	MVP
Purpose	Can we build this technically?	What will it look/feel like?	Will users pay/use this?
Functional?	Core tech only	Often clickable mockup	Fully working
Real users?	No	No (internal/stakeholder)	Yes
Timeline	1–5 days	3–10 days	1–4 weeks
Cost @ $60/hr	$500–$2,000	$1,000–$3,000	$2,400–$4,800+
Stack	Throwaway code OK	Figma or basic HTML	Production-ready

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Proof of Concept (POC)

A POC answers: "Is this technically possible?"

Examples:

• Can we integrate with this legacy API?
• Will this ML model hit accuracy targets?
• Can we process 10K records in under 2 seconds?

POCs are deliberately disposable — hardcoded data, no auth, no polish. You throw away the code after learning yes/no.

Build a POC when:

• Technical risk is the main unknown
• You need engineering proof before fundraising
• Integration with a third-party system is unproven

Skip POC when: you're building a standard CRUD SaaS with known tools (Next.js + Stripe + Clerk). The stack is proven — go straight to MVP.

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Prototype

A prototype answers: "What will the experience feel like?"

Usually built in Figma, or as a clickable HTML mockup without a real backend. Stakeholders click through flows; no data persists.

Build a prototype when:

• You need design approval before development budget
• You're testing UX with users in moderated sessions
• Investors want to "see it" before you write production code

Skip prototype when: you already have clear references (existing apps you want to emulate) and validated demand. A working MVP teaches more than a fake click-through.

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MVP (Minimum Viable Product)

An MVP answers: "Will real users derive enough value to validate our business?"

It's production-deployed software with:

• Real authentication
• Core features working end-to-end
• Real (or beta) users on a live URL
• Analytics to measure behavior

An MVP is not half a product — it's the minimum complete loop from user problem → solution → feedback.

Build an MVP when:

• You have a hypothesis to test with real users
• You're pre-revenue but past the idea stage
• Investors ask for traction, not slides
• You need to learn what to build in v2

Related: MVP Cost Breakdown 2026 · How to Build an MVP in a Week

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Common Founder Mistakes

Building a prototype and calling it an MVP

Investors and users can tell. A Figma file isn't traction. If you need validation, ship working software.

Over-building the MVP

Adding teams, integrations, and analytics before anyone uses core feature #1. Scope to one hypothesis.

Endless POC loops

Six weeks of "technical validation" on a standard web app that could have been an MVP in two weeks.

Skipping straight to v1

Building 20 features before any user feedback. The MVP exists to reduce waste, not to ship less forever.

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Decision Framework

Answer these in order:

1. Is there genuine technical uncertainty? → POC first (rare for most web apps)
2. Do stakeholders need to approve UX before code? → Prototype (optional)
3. Do you need real user validation? → MVP (yes for almost all startups)

If you answered MVP to #3, skip POC and prototype unless #1 or #2 specifically apply.

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Cost Summary (2026, vibe coder @ $60/hr)

Deliverable	Hours	Total
POC (API integration test)	8–16	$480–$960
Prototype (clickable, 5 screens)	16–40	$960–$2,400
MVP (SaaS, 3 features)	40–80	$2,400–$4,800

Compare hiring models: Freelancer vs Agency vs In-House

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Build the Right Thing

Not sure which you need? Byron Johnson helps founders scope correctly — POC, prototype, or MVP — with honest recommendations and fixed quotes.

$60/hr · Full code ownership

MVP Development → · Start a project →