Spin & Win — Back to School
Fattal Lebanon
Fraud-proof offline spin-to-win kiosk activity across 19 retail branches.
Challenge
19 tablets fully offline for six days, real prize stock, and promoters who cannot be trusted to decide outcomes.
Solution
Server-sealed outcome ledgers, tamper-evident record chains, device licensing and a campaign dashboard with integrity alerts.
Services delivered
Technology
Android (Kotlin)SQLCipherNode.jsPostgreSQL
