What is synastry?
Synastry compares two natal charts. It shows how energies weave: where there is resonance, complement, or conflict. Unlike “sign compatibility”, it analyses mutual positions of all planets, houses, and aspects in both charts.
What you get in the reading
Moon compatibility — whether you feel safe. Mercury — how easily you understand each other. Venus — values and affection. Mars — initiative, passion, and possible fights. Squares and oppositions — themes that need attention if the bond is to grow.
Why synastry beats a sign horoscope
Free tests usually compare Suns only. Real relationships are not flat. A synastry chart compares every planet of one chart with every planet of the other, sees which houses your planets fall into, and weighs exact aspects. Two “incompatible” Suns can have a Moon–Venus trine that makes daily life easy.
Not only romance
Synastry works for any meaningful bond: partners, friends, family, a team. Same method: two charts, one interaction map, and text you can discuss together.
How it works
- Build your chart — enter birth data and save the chart in the dashboard.
- Add the other person — date, time, and place of the second person.
- AI analysis — the system compares charts and writes a compatibility reading in plain language.
- Follow-up questions — in the dashboard you can ask about the reading and get new insights.
Compatibility of two charts — FAQ
What is a synastry chart?
An overlay of two natal charts. It shows where people naturally harmonize and where friction is likely.
Is the calculator only for couples?
No. Chart compatibility works for any meaningful bond: romance, friends, family, business partners.
Do both people need exact birth times?
Exact times give the most accurate house overlays, but even dates let you compare planets meaningfully.
Can a reading predict how long a bond lasts?
No reading guarantees an outcome. Synastry lights up dynamics, strengths, and tension so you can work with them consciously.
Do I need my own natal chart first?
Yes. Build a free chart, then add the other person's data and run synastry from the dashboard.