Enter your birth date once. Birthbit computes a daily forecast, compatibility with anyone, and your full natal chart — drawn from eighteen traditions humanity has been reading for thousands of years. All the math runs on your device.
"The stars incline, you decide…"
Every civilization built its own instrument for making sense of a birth. Birthbit computes them all from your date, time and place — honest math, not canned copy — and lets them speak at once.
Sun, Moon & rising signs with element and modality.
Physical, emotional & intellectual cycles — and crisis days.
Life path number & master numbers from your date.
Year animal with the lichun new-year correction.
27 lunar mansions on the sidereal Moon, Lahiri ayanamsha.
36 decans with their Chaldean planetary rulers.
Year/month/day/hour stems & the balance of five elements.
Tone 1–13 × 20 sacred signs, GMT 584283 correlation.
Your animal in the ancient 32-year cycle.
Core & personal arcana drawn from your birthday.
Lite chart from the Sun gate and the −88° design date.
A hexagram of the day, deterministic from the date.
Phase, lunar day & good/bad days for haircuts, deals, travel.
Ten planets on a pixel wheel with real aspect geometry.
…plus retrograde Mercury tracking, moon-sign, ascendant and destiny number — every reading computed, never faked.
Open the app to a "day power" score built from your three biorhythms, a plain-English forecast, retrograde-Mercury warnings and the lunar calendar — with good and bad days for haircuts, deals and travel.
Add anyone's birthday and Birthbit scores your match across six layers: sun-sign chemistry, three biorhythm syncs, Chinese-zodiac relations and life-path pairing — then writes a verdict for love, life together and advice. Share the card with a tap.
The Codex weaves all eighteen systems into a single portrait of who you are: your element and life path, your nakshatra and decan, your Ba Zi balance, the Mayan sign you'd be greeted by and the arcana at your core — with the one theme that repeats across every culture.
Planet positions, aspects, lunar phases and biorhythms are computed on your phone. No server round-trips, no "readings" written by a marketing team.
Zero analytics SDKs, zero ad networks. As a guest, nothing ever leaves your device. Sign in only if you want to sync across phones.
Pixel-art sprites, LVL and day-power stats, a home-screen widget. Astrology that feels like a Game Boy, not a fortune-teller's tent.
Everything is framed as a hint for self-reflection, never an instruction. "The stars incline, you decide" isn't a slogan — it's the whole philosophy.
Start free forever. Unlock the deep systems whenever you're ready — with a 7-day trial and cancel anytime.
or $24.99 / year — save ~48%
Subscriptions are billed through the App Store or Google Play and renew automatically unless cancelled at least 24 hours before the period ends.
The astronomy is: planet longitudes, aspects and lunar phases are computed with real algorithms accurate to about a tenth of a degree. The interpretations — what a Gemini or a waxing moon "means" — come from cultural traditions and are meant for entertainment and self-reflection, not as medical, financial, legal or psychological advice.
As a guest, nothing leaves your device — name, birth details, partner's date and check-ins all stay local. If you sign in to sync across devices, that same data is stored in our secure backend so you can reach it from any phone. We never sell it, show ads, or run trackers. Full details are in the Privacy Policy.
No. "Continue as guest" gives you the whole app with data stored only on your phone. An account is optional and just syncs your profile, streaks and PRO across devices.
Manage or cancel anytime from your App Store or Google Play subscription settings — the app also links you there. Your PRO features stay active until the end of the period you already paid for.
iPhone and Android, from a single build. An Android home-screen biorhythm widget is included; more platform extras are on the way.
It helps — your rising sign and some house-based readings need it. No time? Everything else still works, and you can add it later from your profile.
Free to download. Eighteen traditions, one pixel oracle in your pocket.