Now on the App Store · iPhone, iPad, and Mac
Astrology for
where and when.
Celestium is a cosmic compass for the choices that move your life: where to be, when to act, and how to mark the turning points.
Astrocartography for where to live, work, and travel; plus cosmic timing for when to act.
Free to download · computed on your device
Built on a real ephemeris, validated 1900–2090; the Sun agrees to under two-thousandths of a degree. See the math →
Launch offer: start free
Pick a plan to redeem in the App Store: 2 months free on yearly, or 1 month free on monthly.
On a computer? Scan to redeem the 2-month offer on your phone.
Want cosmic timing in your inbox? Free weekly notes on the sky.
Computed on your device. No account, no tracking. Your data stays in your hands.
Where · Astrocartography
Start with the map. Your birth chart, mapped onto the whole planet. Score thousands of cities for love, work, vitality, and growth, and compare places side by side. Planning a move, a relocation, a trip, or a fresh start? Find the ground that backs you.
When
Daily cosmic weather, moon phases, and the transits actually touching your chart. Zoom from today out to the year. Catch the windows worth using and the ones worth resting through.
Ritual
Guided practices for each moon phase. Small ways to mark a threshold instead of letting it pass unnoticed.
Together
Add a second chart for couples mode: synastry, composite, and the places that hold you both. Or go wider with group mode for three to six people.
Astrology here is for reflection, not prediction. A way to read the weather, not a forecast you have to obey.
Astrology built on the actual sky, brought all the way down to what you can do with it.
The astronomy is real
Your chart is computed on your device from a real ephemeris and validated against the reference standard from 1900 to 2090. The Sun agrees to under two-thousandths of a degree. You can check the math; we publish it.
See the accuracy numbers →Your chart, spoken
A personal audio reading generated from your real placements, in one of eight interpretive voices your chart selects. It reads the full architecture: your chart's dominant shape, its weight, and the planets with the most pull.
Hear 90 seconds free →Depth the category skips
Profections, firdaria, zodiacal releasing, chart shape, dispositors. The techniques a working astrologer uses, surfaced without the jargon wall.
It stays yours
Everything computes on your device. No account, no tracking. Your data leaves your hands only when you choose to send it.
Learn the ideas: Why where beats when in astrology · Your chart is a rhythm, not a forecast