Co–Star.
The astrology app that deciphers the mystery of human relations through NASA data and biting truth.
Access to astrology this accurate has historically been restricted to those with access to personal astrologers—now these predictions can be anyone's.
Our powerful natural-language engine uses NASA data, coupled with the methods of professional astrologers, to algorithmically generate insights about who you are and how you relate to others.
Astrology puts our temporary bodies in context with our universe's vastness, allowing irrationality to invade our techno-rationalist ways of living.
Understand your birth chart
Unlike the broad and vague magazine horoscopes that only use your sun sign, we use a complete picture of the sky when and where you were born to generate your full birth chart.
Get your chart online >
Better together
Keep track of your friends, see what's up with them astrologically if they’re having a bad day, and, of course, see whether you’re fated to fall in love.
Download iOS >
Download Android >
Real-time insights, as the planets move
We use NASA data to know exactly where the stars are, and proprietary technology to generate super-accurate horoscopes. Know what to look for as the stars move—starting now.
Sign up to get your horoscope by email >
Cast your chart & get your horoscope by email
