Synastry: Personalized Astrology for Your Birth Chart The Synastry app analyzes your astrological birth chart and calculates the planetary aspects at the current moment. It notifies you of new transits affecting you, explains their meanings, and provides information about their duration. Important Note: Synastry is designed for users familiar with astrology and planetary aspects. It does not offer generalized predictions for your zodiac sign on a monthly or weekly basis. Instead, it provides a highly personalized experience by monitoring the planetary landscape tailored to you. A special thanks to Ginno Dizon for his invaluable contribution. His creative ideas and visualizations inspired the app's new user interface, now based on his thoughtful sketches.