Multilingual Quiz Application with Ranking System

QuizApp is a comprehensive quiz platform built with Angular that provides an engaging learning experience across multiple knowledge domains. The application features six main categories: Sports, Chemistry, Mathematics, History, Biology, and Geography, with hundreds of questions in each category.
The platform implements a sophisticated scoring and ranking system that tracks user performance over time. Users can compete globally with the ranking leaderboard showing top performers with their accumulated points. The application supports multiple difficulty levels and allows users to customize the number of questions per quiz session.
Key features include real-time progress tracking during quizzes, instant feedback on answers with visual indicators, and a comprehensive score history that logs all quiz attempts with timestamps. The application is fully responsive, working seamlessly on both desktop and mobile devices.
The user interface features a modern dark theme with teal/cyan accent colors, creating an engaging and focused quiz-taking environment. The application is multilingual, supporting multiple languages including French, making it accessible to a broader audience.
Technical achievements include efficient state management with RxJS, smooth navigation using Angular Router, responsive design with Tailwind CSS, and optimized performance for quick question loading and scoring calculations.
Six comprehensive categories including Sports, Chemistry, Mathematics, History, Biology, and Geography with extensive question banks ranging from 30 to 121 questions per category.
Users can select difficulty levels (Easy, Medium, Hard) and choose the number of questions per quiz session, providing flexible learning experiences tailored to individual preferences.
Instant score calculation with visual feedback showing correct and incorrect answers. Progress bar displays current question position throughout the quiz.
Competitive ranking system displaying top performers with their accumulated points. Filter rankings by all-time, this week, or this month for different competitive periods.
Comprehensive history of all quiz attempts with dates and scores. Users can track their progress over time and clear history when needed.
Personalized dashboard showing user ranking, total points accumulated, and motivational messages to encourage continuous learning.
Fully optimized for mobile devices with touch-friendly interfaces and adaptive layouts ensuring excellent experience on smartphones and tablets.
Interface available in multiple languages including French, making the quiz platform accessible to international users.


Health coaching platform with member tracking and coach dashboard
