Every compatibility test on earth asks you for someone first. This one doesn't. Give us your birth details and we'll give you the thirty-six short stretches of the year the people best matched to your chart were born in — ranked, from your own birth star. Your first window is free.
“You're compatible with Gemini” is a whole month of the calendar and about six hundred million people. That isn't a claim, it's a horoscope. We give you dates — stretches of four to fifteen days — because that is the smallest honest unit the maths supports.
Somebody born on the third of september has their sun in the same spot every single year — inside about two degrees. Their moon is a different story: it moves thirteen degrees a day, so across thirty years that same birthday lands in all twenty-seven birth stars.
The full 36-point Vedic match runs on the moon. So no birthday list on earth — ours included — can predict what a real person will score. That is why these windows are ranked and rated rather than given a percentage: a number here would look like the match score and it would be lying to you.
What a birthday can honestly rank is the sun: how a stretch of the calendar sits with your chart, and how the star that sun sits in reads against your own birth star. The windows tell you where to look. A real check tells you what you found.
The sun crosses one nakshatra — a lunar mansion, 13°20′ of the sidereal zodiac — in about thirteen days. There are twenty-seven of them, and nine straddle the line between two rashis (signs), which is why the year divides into thirty-six distinct windows rather than twenty-seven.
Each window is scored twice. Half comes from the classical star tests run between your janma nakshatra and the star the candidate's sun occupies: Nadi (8 points), Gana (6), Yoni (4) and Tara (3) — the twenty-one points of Ashtakoot that depend on the stars alone. The remaining fifteen — Bhakut, Graha Maitri, Vashya and Varna — need both moon signs, which a birthday cannot supply, so the other half of the score stands in for them from your moon, sun and rising.
Positions are computed to Swiss-ephemeris precision on the Lahiri ayanamsa. The four star tests are the same code that runs the paid 36-point Guna Milan report, so the two can never disagree about the same pair.
The sun spends about two weeks in each of twenty-seven “birth stars” — a finer grid than the twelve signs everybody knows. Your own birth star is the anchor. We read every other stretch of the year against it.
Four old tests decide it: whether your constitutions clash, whether you'd get annoyed at the same things, whether your rhythms sync, and the old body-and-instinct match. They are not weighted the same — and the cards show you which ones matter more.
You give four things: your date, time and city of birth, and your name. Seconds later your dashboard opens on your ranked dates. The first one is free and it is the whole card, not a teaser.
Don't know your exact birth time? Start without it. It sharpens the birth star, and you can add it later.