Proof of Usefulness Report

Yaraku

Analysis completed on 2/2/2026

+512
Proof of Usefulness Score
Industry Mainstay

Yaraku Inc. is a verifiable, established Japanese technology company (founded 2009) with significant B2B traction (~40 employees, >2,000 corporate clients, ~$3.8M+ funding). The core product, YarakuZen (rebranding to Yaraku Translate), is a proven SaaS solution. The submission itself was of extremely poor quality, containing hyperbolic claims ('most people have used my product') and missing data ('marketcap: null'), which heavily penalized the Traction and Reach scores via the Quality Factor. However, the external reality of the business justifies a score superior to the baseline (HackerNoon), as it operates at a larger scale.

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Score Breakdown

Real World Utility+212.5
Audience Reach Impact+60.0
Technical Innovation+105.0
Evidence Of Traction+93.8
Market Timing Relevance+80.0
Functional Completeness+5.0
Subtotal+556.3
Usefulness Multiplierx0.92
Final Score+512

Project Details

Project URL
yaraku.com
Description
Our focus is primarily on our web-based Translation Management System application. Our product, YarakuZen is an online translation software that makes doing business in foreign languages easier. You can upload documents to your account to conveniently edit them and save the correct translations. YarakuZen remembers which phrases you edit, so the more you use YarakuZen, the more accurate the automatic translations become.\n\nWe also focus on developing a completely new simultaneous translation device called YarakuStick (β). Instead of translating and speaking one sentence at a time like conventional voice translators, YarakuStick (β) will continuously perform machine translation and display it as subtitles.\n \nYarakuStick (β) is equipped with six microphones, like smart speakers, available in 27 languages. YarakuStick (β) is a lightweight, compact device that can be carried in a bag, and used in your hand or placed on a desk. If you’ve ever been nervous about a business trip overseas, YarakuStick can offer you some peace of mind.

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