Proof of Usefulness Report

Dapper - the growth agency

Analysis completed on 1/19/2026

+46
Proof of Usefulness Score
You're In Business

The submission appears to be for 'Dapper', a legitimate B2B growth marketing agency in Rotterdam, despite the project name 'StarStorm' and low-quality input data. While the agency is a verified business with approximately 20 employees and real client cases, it scores low on the Proof of Usefulness scale because it is a service business rather than a technology product. The submission contained significant errors (e.g., claiming 'most people have used my product' and 'everyone' as the audience), which heavily penalized the Response Quality and Traction Evidence scores. The project relies on third-party tools (HubSpot, Google Ads) rather than proprietary technical innovation.

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Score Breakdown

Real World Utility+16
Audience Reach Impact+5
Technical Innovation+3
Evidence Of Traction+12
Market Timing Relevance+5
Functional Completeness+0
Subtotal+42
Usefulness Multiplierx1.08
Final Score+46

Project Details

Project URL
dapper.agency
Description
Dapper is a growth marketing agency based in Rotterdam, right next to Rotterdam Central Station. Founded in 2018, we’re growing into one of Europe’s leading growth agencies. Our mission is to maximize growth for brands that make an impact, using the latest tools and technology, unparalleled creativity, and the best talent out there.\n\nDapper offers Growth marketing services for the B2B, e-commerce, and SaaS sectors, and supports companies with Growth Marketing training. To do so, we use the most advanced tools in Growth Marketing and keep moving continuously with the latest developments within our fields. Examples of tools we use are LinkedIn Campaign Manager, Facebook Ad Manager, Google Ads, Youtube Ads, TikTok Ads Manager, Google Analytics, Active Campaign, Hubspot, and Leadfeeder, but there are many more.
Audience Reach
everyone
Target Users
everyone
Technologies
Social Media, Business Development, Analytics
Traction Evidence
most people have used my product

Algorithm Insights

Market Position
Growing utility with room for optimization
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