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Kindred Stars maps your full birth chart: 10 planets, 12 houses, 5 major aspects, into a 0–100 compatibility score, then surfaces the people who match it most deeply.
Not sun-sign guesswork. A structured methodology, the same framework astrologers have used for centuries, scored into something you can actually act on.
Full synastry breakdown: planetary aspects, elemental harmony, and a compatibility score for every person you meet.

Zara, 25
♉ Taurus

Sofia, 27
♓ Pisces
Key Aspects
Elemental Harmony
Click any node to explore each step.
A birth chart captures where every planet sat at the exact moment you were born. Kindred Stars reads that chart, not just your Sun sign, and scores compatibility across the dimensions that actually predict whether two people connect.
At the moment of birth, every planet occupied a specific degree of the zodiac. The natal chart records those positions. It doesn't determine fate, it describes the psychological landscape you came in with: the drives, needs, and patterns that show up repeatedly through your life.
Synastry is what happens when you overlay two people's charts. The question isn't just what signs they are, it's which of their planets make contact, and at what angle. A Sun-Moon conjunction creates instant emotional recognition. Saturn conjunct Venus creates a bond that feels meaningful but tests both people.
Venus describes what you find beautiful, how you express affection, and what you need to feel loved. Mars describes how you pursue things and what activates you. Compatibility lives in how these planets interact between two charts, not just in Sun-sign pairing. Most apps ignore Venus and Mars entirely.
The 12 houses divide the chart into areas of life. The 7th house governs long-term partnership. The 5th governs romance and play. The 8th governs intimacy and deep bonding. Planets falling in these houses between two people's charts describe where the relationship will be most alive.
Sun-sign matching is where most apps stop. Kindred Stars starts there and goes further calculating a full natal chart and scoring compatibility across the dimensions that actually matter.
Full natal chart
Sun, Moon, Rising, Venus, and Mars positions calculated from your exact birth data.
Elemental balance
How your fire, earth, air, and water compositions interact, same-element comfort vs. cross-element spark.
Modal harmony
Whether your Cardinal, Fixed, and Mutable energies complement each other or compete for the lead.
Composite score
A weighted compatibility score from 0–100 that surfaces your most resonant matches first.
“I'm a software engineer who rolls his eyes at horoscopes. But the compatibility report called out things about us that took me months to figure out in past relationships. I can't fully explain it.”
Jordan, 31
Austin TX · Met his match after 3 weeks
“I've been doing astrology for years and manually running synastry on every person I date. This is the first app that actually understands what I'm looking for, not just sun signs.”
Priya, 24
Los Angeles · Scorpio Moon
“I liked that the app didn't tell me who I was 'destined' to be with. It just gave me context before I met someone. I went in curious instead of guarded.”
Danielle, 29
Chicago · Third date this month
Every match comes with a full compatibility breakdown. No algorithm black box. You see exactly why two charts connect.

Zara, 25
♉ Taurus · ♒ Aquarius Moon
94%
match
Sofia, 27
♓ Pisces · ♑ Capricorn Moon

What's working
Venus trine Moon
Deep emotional understanding flows naturally. One of the strongest bonds in a synastry chart. Each person feels genuinely seen by the other.
Sun sextile Venus
Easy warmth and mutual admiration. You make each other feel good without having to work for it.
Moon conjunct Moon
Rare emotional resonance. You instinctively understand each other's moods and needs, often without words.
Where to navigate
Saturn square Mercury
Communication can feel serious or heavy early on. Make space for lightness and humor intentionally. This aspect rewards patience.
Elemental harmony
Every match includes this report. Free tier: 5 matches.
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