Proof of Usefulness Report

Preply

Analysis completed on 1/28/2026

+691
Proof of Usefulness Score
Category Standard

Preply is a well-established, high-traction language learning marketplace with significant real-world utility and global reach. While the project submission itself was low-quality (vague descriptions, hyperbolic claims like 'most people', and mislabeled revenue data), the verifiable external reality of the business (600+ employees, estimated $50M+ revenue, Series C funding) warrants a high score. The score is penalized significantly by the Quality Factors due to the poor submission effort, but remains in the 'Much Larger Scale' tier due to undeniable market presence.

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Score Breakdown

Real World Utility+247.5
Audience Reach Impact+190.0
Technical Innovation+90.0
Evidence Of Traction+190.0
Market Timing Relevance+90.0
Functional Completeness+5.0
Subtotal+812.5
Usefulness Multiplierx0.85
Final Score+691

Project Details

Project URL
preply.com
Description
Preply is an online educational platform that connects students with tutors for personalized learning experiences. Operating through its website, preply.com, the company offers a wide range of subjects, including languages, academic disciplines, and professional skills. Preply's platform allows students to find and interact with qualified tutors from around the world, providing flexible scheduling and tailored lesson plans to meet individual learning goals. The company emphasizes a user-friendly interface and a diverse selection of tutors to cater to various learning preferences and needs.

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