Proof of Usefulness Report

GrowthBook (YC W22)

Analysis completed on 1/22/2026

+810
Proof of Usefulness Score
Unicorn Utility

GrowthBook is a highly legitimate, high-traction open-source platform (YC W22) with over 7,300 GitHub stars and ~$23M in funding. While the submission form itself was poorly filled out (lazy claims like 'most people have used my product' and empty metrics), independent verification confirms it is a market-leading tool used by over 2,600 organizations. The project demonstrates exceptional real-world utility and market timing, fitting perfectly into the modern data warehouse ecosystem.

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Score Breakdown

Real World Utility+23.0
Audience Reach Impact+17.0
Technical Innovation+13.2
Evidence Of Traction+24.0
Market Timing Relevance+9.5
Functional Completeness+0.5
Subtotal+87.2
Usefulness Multiplierx0.93
Final Score+811

Project Details

Project URL
growthbook.io
Description
GrowthBook is an open-core experimentation platform to design, run, analyze, and learn from A/B tests using companies existing data warehouse. Our platform gives any company the power of a customized testing solution like those used by Netflix, Uber, AirBnB, Pinterest, etc.\n\nThe top 1% of companies spend thousands of hours building their own A/B testing platforms in-house. The other 99% are left paying for expensive 3rd party SaaS tools or hacking together unmaintained open source libraries. GrowthBook gives companies the flexibility and power of a fully-featured in-house A/B testing platform without needing to build it in-house. We easily integrate with processes and code to unlock the potential of effective, high velocity, experimentation programs. \n\nWe are backed by top VCs including Y Combinator.

Algorithm Insights

Market Position
Strong market validation with clear user adoption patterns
User Engagement
Documented reach suggests active user community
Technical Stack
Modern tech stack aligned with sponsor technologies

Recommendations to Increase Usefulness Score

Document User Growth

Provide specific metrics on user acquisition and retention rates

Showcase Revenue Model

Detail sustainable monetization strategy and current revenue streams

Expand Evidence Base

Include testimonials, case studies, and third-party validation

Technical Roadmap

Share development milestones and feature completion timeline