Proof of Usefulness Report

Black Market SSP

Analysis completed on 1/23/2026

+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

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