"BTC Quwin" could refer to two distinct things based on the information available:

Quwinn Quiz Platform: This is a virtual quiz and gaming app where users can participate in tournaments, quizzes, and battle challenges to earn rewards. It allows users to compete against others and withdraw winnings directly to their accounts. The app emphasizes fun and learning while offering competitive and casual game modes. Although it doesn’t specifically relate to Bitcoin or crypto directly, its earnings and withdrawal features might be of interest in the broader financial gaming space​