My Biorhythm Calculator

My Biorhythm Calculator helps you understand your natural rhythms based on your birth date. FEATURES • 7 biorhythm cycles — Physical, Emotional, Intellectual, Intuitive, Aesthetic, Awareness and Spiritual • Day Quality rating — instantly see if today is Excellent, Good, Fair or Challenging • Interactive charts with 7-day, 30-day, 90-day and 1-year views • Critical day alerts and upcoming peaks and lows • Compatibility checker — compare biorhythms with a partner, friend or family member, and find your best days together • Save up to 4 birth date profiles for quick switching • Daily notification with your biorhythm summary • Your Life Journey — days lived, sunrises witnessed, heartbeats and more • Beautiful dark theme designed for mobile PRIVATE BY DESIGN Free, no account required, no ads. All calculations happen on your device and your data never leaves it. Biorhythms are for entertainment and self-reflection, not medical advice.