What Is a Proof of Concept?
A proof of concept (POC) is a small experiment designed to test whether a specific technical approach will work. It's not a product. It's not even a prototype. It's a focused test that proves (or disproves) a single technical hypothesis.
In the startup world, a POC typically answers questions like:
- Can our AI model achieve 90%+ accuracy on this specific task?
- Can we integrate these two legacy systems reliably?
- Can this algorithm process 10,000 transactions per second?
- Can we meet HIPAA requirements with this architecture?
Notice what these questions have in common: they're all about feasibility, not desirability. A POC doesn't tell you if customers want your product. It tells you if you can build what you're imagining.
This is fundamentally different from what an MVP is designed to do. An MVP tests market demand. A POC tests technical viability. Confusing the two is one of the most expensive mistakes a founder can make.
Why Startups Use a Proof of Concept
Not every startup needs a POC. In fact, most don't. If you're building a straightforward SaaS product with well-understood technology, skip the POC and go straight to an MVP.
But a POC becomes critical when:
Technical Risk Is High
You're using unproven technology, custom algorithms, or approaches that haven't been validated in your specific context.
Integration Complexity
Your product depends on connecting systems that have never been connected before, or working with APIs that have unknown limitations.
Performance Requirements
Your business model depends on hitting specific performance thresholds—speed, accuracy, scale—that can't be assumed.
Regulatory Constraints
You need to prove compliance is possible before investing in a full solution. Common in healthcare, finance, and legal tech.
The key question: If this technical approach fails, does your entire startup idea collapse? If yes, do a POC first. If no, skip to the MVP.
Proof of Concept vs MVP: The Critical Difference
This is where most founders get confused. A POC and an MVP serve completely different purposes, test different things, and have different outputs.
| Aspect | Proof of Concept | MVP |
|---|---|---|
| Primary Question | Can this be built? | Will anyone use this? |
| Goal | Validate technical feasibility | Validate market demand |
| Users | Internal team only | Real external users |
| Output | Technical proof + learnings | Usable product + user data |
| Timeline | 2-6 weeks | 4-12 weeks |
| Polish Level | Rough, functional | Good enough for users |
Here's the simplest way to think about it:
POC → "Can we build it?"
MVP → "Should we build it?"
Most startups should skip the POC entirely. Learn how founders typically build an MVP after validating that their idea is technically feasible—or when they're confident it is from the start.
Not sure if you need a POC or an MVP?
Most non-technical founders don't need a POC—they need to move straight to validation. We can help you figure out the fastest path to testing your idea.
Explore MVP OptionsWhen Should a Startup Build a POC?
A POC is worth the investment only when technical uncertainty is high enough to derail your entire project. Here are the most common scenarios:
AI/ML-Heavy Products
If your core value proposition depends on an AI model achieving specific accuracy or performance, test that before building the product around it. Many AI startups discover their model can't hit 80% accuracy until they've already spent $50K on development.
Complex Third-Party Integrations
When your product depends on APIs or systems you don't control, validate the integration works before building around it. APIs have rate limits, data format quirks, and undocumented behaviors that only surface during implementation.
Regulated Industries
Healthcare, finance, and legal tech often require proving compliance is possible before building. A POC can demonstrate that your architecture meets HIPAA, SOC 2, or other regulatory requirements.
Hardware-Software Integration
When software needs to communicate with physical devices—IoT sensors, medical devices, industrial equipment—a POC can validate the connection works reliably before building the full application layer.
The rule: If you could answer "can this be built?" with 15 minutes of research or a quick prototype, skip the formal POC. Only invest in one when the technical question is genuinely uncertain.
Examples of Proof of Concept in Startups
Here are real-world examples of when startups used POCs effectively:
AI Document Processing Startup
The question: Can we extract structured data from handwritten medical forms with 95%+ accuracy?
The POC: Trained a model on 500 sample forms, measured accuracy, identified failure cases.
Result: Achieved 87% accuracy. Pivoted approach before building the full product.
Fintech Integration Platform
The question: Can we sync data between QuickBooks, Xero, and three legacy banking APIs in real-time?
The POC: Built minimal connection layer, tested data sync under load, documented API quirks.
Result: Discovered one banking API had a 15-minute delay. Redesigned architecture before MVP.
IoT Fleet Management
The question: Can our GPS devices maintain connection in underground parking structures?
The POC: Deployed 10 devices across 5 locations, measured signal reliability over 2 weeks.
Result: 73% reliability wasn't enough. Switched hardware vendors before scaling.
Notice what these POCs have in common: they're focused, fast, and designed to answer one specific question. They're not prototypes. They're not early versions of the product. They're technical experiments.
Common Mistakes Founders Make with POCs
1. Treating the POC Like a Product
Adding UI polish, user accounts, and "nice to have" features. A POC should be ugly and functional. If it looks good, you've over-invested.
2. Using POC as a Stalling Tactic
Some founders hide behind "we're still validating feasibility" to avoid the scarier work of talking to customers. If your POC is taking months, you're procrastinating.
3. Skipping Straight to MVP When POC Was Needed
The opposite mistake: assuming everything is technically feasible because "it's just software." Six months later, you discover the core algorithm doesn't work.
4. Not Defining Success Criteria
Starting a POC without clear pass/fail thresholds. "Does it work?" isn't a criteria. "Can it process 1,000 requests/second with less than 200ms latency?" is.
What Comes After a Proof of Concept?
A successful POC doesn't mean you're ready to build a full product. It means you've eliminated one category of risk. Here's what happens next:
Decide: Is the idea still viable?
If the POC failed, pivot or kill the idea. If it succeeded with caveats, decide if those caveats are acceptable.
Define MVP scope
Use what you learned from the POC to scope a realistic MVP. You now know what's possible and what's harder than expected.
Build the MVP
Now you're ready to build something for real users. The technical risk is retired. Focus on user experience and market validation.
Validate product-market fit
Get the MVP in front of real users. Measure engagement, collect feedback, iterate toward product-market fit.
Most founders who complete a POC successfully are ready to build an MVP. The question shifts from "Can we build it?" to "How do we build it efficiently?"
What Is an MVP? (Startup Meaning & Examples) →Frequently Asked Questions
What is a proof of concept?
A proof of concept (POC) is a small-scale test that demonstrates whether a technical idea or approach is feasible. For startups, it answers the question "Can this be built?" before investing in full development.
Is a POC the same as an MVP?
No. A POC tests technical feasibility internally, while an MVP tests market demand with real users. A POC asks "Can we build this?" An MVP asks "Will anyone use this?" Most startups need an MVP; only some need a POC first.
Do all startups need a POC?
No. Most startups can skip straight to an MVP. You only need a POC if your idea involves unproven technology, complex integrations, or technical approaches where failure would waste significant resources.
How long does a proof of concept take?
Most POCs take 2-6 weeks to complete. The goal is speed—you want to validate feasibility quickly, not build a polished solution. If your POC is taking months, you may be overbuilding.
How much does a POC cost?
POC costs typically range from $2,000-$15,000 depending on complexity. Since a POC is a focused technical test, it should cost significantly less than an MVP. If your POC quote matches MVP pricing, reconsider the scope.
Related Resources
What Is an MVP?
Startup meaning, real examples, and how founders use MVPs to validate ideas.
Product-Market Fit Guide
How to measure PMF and what to do once your MVP is live.
Startup Costs Guide
Realistic budgets for POCs, MVPs, and early-stage development.
MVP Cost Calculator
Get an instant estimate for your MVP based on features and complexity.