Features
Everything you need to master programming languages effectively.
Adaptive Learning
Spaced repetition algorithm (SM-2) optimizes review timing based on your performance.
AI-Generated Questions
Fresh, diverse questions powered by OpenAI ensure you never run out of practice material.
Auto-Save Progress
Never lose progress. Resume incomplete quizzes right where you left off.
Keyboard Shortcuts
Speed through quizzes with 1-5 keys for answers, Enter to submit, and arrow navigation.
Detailed Analytics
Track performance trends, identify weak areas, and visualize your learning journey.
6 Languages
JavaScript, Python, Java, C++, Go, and Rust - all with multiple difficulty levels.
Mobile Optimized
Responsive design that works seamlessly on any device - phone, tablet, or desktop.
Smart Question Selection
Prioritizes review questions, fresh content, and retry opportunities for optimal learning.
Question Reporting
Flag unclear or incorrect questions to help maintain quality standards.
Simple Pricing
Simple monthly plans. Cancel anytime.