The SkyBrain cognitive framework uses Individual Alpha Peak Frequency (iAPF) as a primary biomarker. iAPF represents your brain's unique operating frequency within the alpha band (8-13 Hz). Research shows that higher iAPF correlates with: 1) Faster cognitive processing speed, 2) Better mental flexibility and task switching, 3) Enhanced working memory capacity, 4) Improved overall brain health. Our platform tracks iAPF across different activities (baseline, gaming, meditation, cognitive tasks, stress response) to establish personal baselines and identify optimal performance periods throughout the day. We analyze band power across all frequency ranges: Delta (0.5-4 Hz) for deep sleep, Theta (4-8 Hz) for creativity and memory, Alpha (8-13 Hz) for relaxation and focus, Beta (13-30 Hz) for active thinking, and Gamma (30-100 Hz) for peak cognitive performance. This comprehensive analysis enables real-time mental state classification and cognitive optimization.