✅ Global real-time ranking
✅ Classic Schulte Table training mode
✅ Adjustable grid size (from 3×3 to 10×10)
✅ Configurable grid modes ("Numbers", "Inverted Numbers", "Letters", "Inverted Letters")
✅ Timed challenges to boost training effects
✅ Statistical data to track progress
✅ Cloud storage for data synchronization
✅ Suitable for attention training, speed reading practice, and cognitive development