Zodiac compatibility,
from your birth charts
The stars don’t build a relationship for you, but your chart says a lot about how you show up in one. We compare your birth chart with someone else’s and show you where you understand each other easily and where the spark runs differently than you’d expect. For your mom, your dad, your child, your partner, and your friends. Plus a love profile that’s all about you.
6 areas
of your relationships in one place
2 charts
in every comparison
Up to 14
aspects between charts
Your love profile
Who you are in love, how you love, and the kind of partner you want. From your birth chart.
Learn moreYou and your mom
The bond, the gifts, and the friction between your chart and your mom’s.
Learn moreYou and your dad
Authority, identity, and a way to make peace, as your chart and your dad’s show it.
Learn moreUnderstand your child
Who your child is, what they need, and how to guide them gently. Notes for parents.
Learn morePartner compatibility
Attraction, love languages, and intimacy between you and your partner.
Learn moreYou and your friends
Why you click, where it rubs, and how to grow closer.
Learn moreWhat relationships and compatibility covers
It’s a set of relationship readings built by comparing two birth charts: yours and the chart of someone who matters to you. Astrologers call this synastry. The comparison shows where your personalities fit together, where they rub, and what you can do about it.
Alongside the readings about other people, there’s your love profile, calculated from your own chart alone. It describes who you are in love, how you love, what you want, and the kind of partner you reach for, knowingly or not. You don’t need anyone else’s data for it.
How we calculate compatibility (synastry)
No generic sign-by-sign compatibility tables. We work with the real positions of the planets in two specific charts and look for the angles between them, known as cross-aspects.
- Two real birth charts: yours and the other person’s, calculated from Swiss Ephemeris data using the date, time, and place of birth.
- Cross-aspects between planets: conjunction, sextile, square, trine, and opposition, each with its exact orb. We keep up to 14 of the tightest.
- A focus that fits the relationship: with your mom the Moon leads, with your dad it’s the Sun and Saturn, with a partner it’s Venus and Mars. Each relationship gets read through its own lens.
- No extras: no Lilith, Chiron, or lunar nodes. Just the classic planets, so the reading stays clear instead of drowning in symbols.
Six ways to look at your relationships
The reading for your mom looks at emotional attachment and the mother wound. The one for your dad looks at authority, identity, and making peace. The reading for your child is a guide for parents: who your child is and what they need. Love compatibility covers attraction, love languages, and intimacy. Friendship compatibility shows why you click with someone and where it gets bumpy. And your love profile is about you and no one else.
Astra, our astrology guide, writes every reading in plain language. You get connected text you can follow without studying astrology, not a table of symbols.
Honest, not flattering
Our readings aren’t here to make you feel good at any cost. When two charts show a hard dynamic, we name it plainly. We never frame it as a verdict, and we never say something can’t be repaired. For every point of friction, we also show a way to work with it.
Astrology is a language for knowing yourself better. It describes tendencies and patterns, not a fixed fate. The decisions are always yours.
How to get it
Your love profile and the readings for your mom and dad are part of the Star plan. The readings for your child, your partner, and your friends are part of Cosmos. Daily horoscopes for every sign stay free.
Relationship astrology FAQ
›What is synastry?
Synastry compares two birth charts. It looks for the angles (aspects) between the planets in one chart and the planets in the other, such as your Moon and your partner’s Sun. Those cross-aspects describe how two people affect each other: where they attract, where they balance each other, and where they collide. We use the five classic aspects (conjunction, sextile, square, trine, and opposition) with orbs and keep up to fourteen of the tightest.
›What do you base compatibility on?
The real positions of the planets in two specific birth charts, not general compatibility between signs. We calculate both charts from Swiss Ephemeris data using the date, time, and place of birth. The focus shifts with the relationship: mostly the Moon for your mom, the Sun and Saturn for your dad, Venus and Mars for a partner.
›Is this fortune-telling?
No. Relationship astrology describes tendencies and patterns between two people, not a fixed fate. It shows where you meet easily and where it takes more conscious effort, and it offers practical ideas. What you do with that is up to you.
›Do I need the other person’s birth time?
Ideally, yes. A birth time pins down the Moon and the houses. If you don’t know it, that’s fine. We use noon as a neutral midpoint and note in the reading that the Moon and houses are approximate. The Sun and most planets stay reliable.
›Which relationships can I get a reading for?
Six: your love profile, your mom, your dad, your child, your partner, and your friends. The love profile and parents are part of Star. Child, partner, and friends are part of Cosmos. Cosmos includes two children, one partner, and two friends, and you can buy slots for more.
›What if the result doesn’t fit at all?
Astrology describes tendencies, not certainties, and every relationship keeps changing. When something is off, an inexact birth time for one of you is often the reason. Either way, treat the reading as a mirror and something to think about, not a final verdict.
See your relationships differently
Signing up is free, and daily horoscopes stay free. Relationship readings are part of a paid membership: your love profile and parents with Star, your child, partner, and friends with Cosmos.
No credit card required to sign up. Cancel anytime.