Launching 2027 · join waitlist

Step inside the
architecture of the cosmos.

A visual, scholarly companion to astrology — rooted in Ptolemy, Lilly, and 2,000 years of celestial observation. No horoscopes. No vibes. Just structure.

♈ ♉ ♊ ♋ ♌ ♍ ♎ ♏ ♐ ♑ ♒ ♓ Aries Taurus Gemini Cancer Leo Virgo Libra Scorpio Sagittarius Capricorn Aquarius Pisces ☉ ☽ August 2024 example nativity
Nativity View · example natal chart · 12 signs · 7 classical planets · 3 aspects
THE APP · IN BETA

Four tools.
One deeper way to read the sky.

Not another horoscope app. Nativity gives you tools for seeing celestial patterns, tracing planetary meanings, and asking the tradition itself.

Nativity view

See any birth chart as a visual map. 12 signs, 12 houses, 7 classical planets. Aspects as geometry. First time astrology makes visual sense.

The Lens

Tap any placement. See its classical rulership, its decanic subdivision, every aspect it forms, and what Ptolemy, Lilly, and Hand said about it.

Ask Nativity

Answers built from classical sources only — Tetrabiblos, Christian Astrology, Horary Textbook. No vibes. No pseudoscience. Just the tradition, cited.

The Transits

Watch the sky move in real time. See when transits aspect your chart. Classical interpretations, zero algorithmic astrology nonsense.

THE FIVE BOOKS · COMING

Five volumes.
Five architectures of the cosmos.

Print companions to the app. Each book takes one structural layer of celestial tradition and renders it visually. Where modern claims fail, we say so.

VOL I
The
Twelve
Zodiac
Vol I

The twelve signs rendered as structural archetypes. Elemental triads, modal squares, polarities, decans.

VOL II
The
Aspects
Geometry
Vol II

The five Ptolemaic aspects as planetary geometry. Conjunctions, oppositions, trines, squares, sextiles.

VOL III
The
Counts
Testing
Vol III

Statistical analysis across 10,000+ historical nativities. Testing famous claims. Reporting the ones that fail — and why.

VOL IV
The
Houses
Topics
Vol IV

The twelve houses as topics of life. Whole-sign vs Placidus vs Regiomontanus — the house system wars resolved.

VOL V
The
Nativity
Birth chart
Vol V

The full natal chart as scholarly document. How to read your own chart with 2,000 years of tradition behind you.

THE METHOD

Honest with the tradition.
Honest about what's unverified.

No vibes. No pop astrology. No Instagram memes. If a modern claim fails under historical or statistical analysis, we say so — with evidence.

◆ CLASSICAL SOURCES

Rooted in 2,000 years of tradition

We draw on the great astrological tradition: Ptolemy (Tetrabiblos, 2nd c.), Firmicus Maternus, al-Biruni, William Lilly (Christian Astrology), Robert Hand, Benjamin Dykes.

Sources cited. Every interpretation traced to a text.
◆ ASTRONOMICAL CORPUS

Planetary positions computed

Chart calculations via Swiss Ephemeris (NASA-grade). Rulership tables, dignities, essential and accidental — all according to classical methodology.

Swiss Ephemeris. Astrodienst integration.
◆ TESTING CLAIMS

We publish the failures

Volume III (The Counts) tested fifteen viral astrology claims. Seven failed under statistical analysis. We report the result either way, with the data.

Public ledger. All test methodology open-source on GitHub.
SUPPORT · PATRONAGE

Not a subscription.
A patronage.

Nativity is funded by its students. Give once. Get lifetime access. Every tier gives something back.

Observer
$5+
Any amount
  • Your name among the Nativity patrons
  • First access to all app updates
  • Weekly celestial brief by email
Give once
Patron
$100+
Everything above, plus:
  • All five printed books delivered when published
  • Signed copy of The Twelve (first edition)
  • Invitation to annual Nativity symposium
Give $100

The sky wasn't random.
Why read it that way?

Join 1,800+ students waiting for Nativity. We're launching in Q3 2027.

Join the waitlist →