+60
Proof of Usefulness Score
You're In Business
The project addresses a specific, high-utility problem in South Sudan regarding currency instability and petroleum tracking. The app is verified as live on the Google Play Store with a very recent update (Jan 3, 2026), indicating active maintenance. However, traction is currently minimal (~100+ downloads), and claims of iOS/Web availability could not be independently verified in search snippets. The 'crowdsourced' rate validation feature is a smart technical addition for the context.
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Score Breakdown
Real World Utility+25.5
Audience Reach Impact+2.0
Technical Innovation+8.25
Evidence Of Traction+7.5
Market Timing Relevance+8.0
Functional Completeness+2.5
Subtotal+53.75
Usefulness Multiplierx1.12
Final Score+60
Project Details
Project URL
Description
BlackMarket SSP tracks black market and official currency exchange rates, plus daily petroleum production in South Sudan. Available on web, Android, and iOS, the app uses React Native for the UI, Node.js/Express.js for the backend, and Firebase Realtime Database. Features include real-time data, social interaction (voting/commenting), and accurate rate estimations..
Audience Reach
Over 200 people
Target Users
This project targets currency exchange traders and everyday citizens interested in monitoring daily currency fluctuations.
Technologies
Other, Firebase
Traction Evidence
https://play.google.com/store/apps/details?id=com.bkzarok.SSPBlackMarket
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