Three cycles started the day you were born

Your day,
as a number.

Birthbit computes where your physical, emotional and intellectual cycles stand today and turns them into one day-power score. Everything else is calculated the same way, from your exact birth date, time and place. Shift the birth time by two hours and your rising sign changes, your houses rotate, the whole chart moves — which is why no two Birthbit profiles are alike.

Coming soon on theApp Store Coming soon onGoogle Play

"The stars incline, you decide…"

Birthbit home screen: three biorhythm cycles as pixel bars and a day-power score

18+ traditions 0 ads & trackers Works offline iOS & Android

Eighteen traditions, one birth moment

Computed for you, not for your sign

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.

Biorhythms

Physical, emotional & intellectual cycles — and crisis days.

Western zodiac

Sun, Moon & rising signs with element and modality.

Numerology

Life path number & master numbers from your date.

Chinese zodiac

Year animal with the lichun new-year correction.

Vedic nakshatra

27 lunar mansions on the sidereal Moon, Lahiri ayanamsha.

Egyptian decans

36 decans with their Chaldean planetary rulers.

Ba Zi — Four Pillars

Year/month/day/hour stems & the balance of five elements.

Mayan Tzolk'in

Tone 1–13 × 20 sacred signs, GMT 584283 correlation.

Zoroastrian totem

Your animal in the ancient 32-year cycle.

Matrix of Destiny

Core & personal arcana drawn from your birthday.

Human Design

Lite chart from the Sun gate and the −88° design date.

I-Ching hexagram

A hexagram of the day, deterministic from the date.

Lunar calendar

Phase, lunar day & good/bad days for haircuts, deals, travel.

Natal chart & aspects

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.

What you get every day

What you are made of, who you work with, and why

Home

Your day, powered by real cycles

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.

Physical / emotional / intellectual bars & crisis days
Deterministic daily forecast — the same day always reads the same
Hexagram of the day and moon-day guidance

Birthbit home screen: biorhythms, day power and the lunar calendar

PRO

Compatibility — how you two really run

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.

Overall match power with named relationship badges
Love & passion, life together, and honest friction points
A daily couple forecast — high tide, quiet harbor or storm

Birthbit compatibility: match score across six layers

Free to see · PRO to go deep

How gifted are you? Find your rank.

All eighteen systems keep describing the same person in different dialects. Birthbit tallies their votes into one build: the three qualities you were dealt maxed out, the three the stars left for you to level up — and a single giftedness score that places you on a ten-rank ladder.

Core traits: your powered-up three, plus a growth zone with training tips
A build rating out of 100 that places you on a ten-rank ladder — the higher, the rarer
See the exact stars, numbers and elements that fed your score
Share your rank or your build as a pixel card

Birthbit build rating: 82 out of 100, rank 4 of 10, with the score breakdown

PRO

Your Codex — every tradition, one story

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.

Character stats — STR / INT / CHA / LUK gauges from your chart
Tap any system for "what does this mean?" and "where does it come from?"
Full natal wheel with planets and aspect geometry

PRO

Your three numbers — and the one you were never dealt

Every tradition here ends in a number: a life path, an arcanum, a Tzolk'in tone, a Human Design gate. Most of them have nothing to do with each other — but a few keep coming back, and those are yours. The catch is that a repeat is not automatically meaningful: a value on a 1–9 scale collides by accident far more often than one on a 1–64 scale. Birthbit weights every match by how unlikely it was, then measures it against how often that number turns up for everybody else. Without that correction, three and seven would come out "special" for four people in ten — which tells you about arithmetic, not about you.

Each number with the systems that produced it — the evidence, not just the meaning
How rare your combination is, calibrated over 12,000 birth dates from 1930 to 2030
Your shadow number: the digit that appears nowhere in your chart at all
Days whose date lands on one of your numbers get flagged in the forecast

Birthbit personal numbers: three recurring figures with the systems behind each and how rare they are

Why Birthbit

Built like a game. Honest like a calculator.

Real math, offline

Planet positions, aspects, lunar phases and biorhythms are computed on your phone. No server round-trips, no "readings" written by a marketing team.

No ads, no trackers

Zero analytics SDKs, zero ad networks. As a guest, nothing ever leaves your device. Sign in only if you want to sync across phones.

8-bit, not woo

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.

You decide

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.

Pricing

Free to play. PRO to go deep.

Start free forever. Unlock the full app whenever you're ready — cancel anytime.

FREE

Daily forecast & day power
Three biorhythm cycles
Sun, moon & rising signs
Your build rating, rank & top trait
The first of your three numbers
Lunar calendar & hexagram of the day
Mercury-retrograde tracking
Evening check-in & mood diary

SAVE 47%

PRO — FULL ACCESS

$2.10 / mo

billed annually — or $3.99/mo billed monthly

Everything in Free
Weekly forecast & best-day picks
Compatibility & daily couple forecast
Full core traits + growth zone with training tips
The full breakdown behind your rating
Full natal chart & aspects
The complete ancient Codex (all 18 systems)
Your three numbers, their evidence and your shadow number
Daily couple forecast

Subscriptions are billed through the App Store or Google Play and renew automatically unless cancelled at least 24 hours before the period ends.

FAQ

Good questions

Is any of this scientifically accurate?

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.

How is my build rating calculated?

Your score adds up what your chart was dealt across every system: sun and moon stats, master numbers in numerology, allied elements between your Sun and Moon, the ruler of your Egyptian decan, the balance of the five Ba Zi elements, auspicious lunar mansions, high Tzolk'in tones and radiant arcana. Nothing is random and nothing is a personality quiz — every point traces back to your birth date. Ten ranks wait on the ladder, and the air gets thinner toward the top. Where you land is your chart's own doing: open the app and find out. Curious how deep the computation goes? Read the full method.

What do you do with my birth data?

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.

Do I need to create an account?

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.

How do I cancel PRO?

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.

Which platforms are supported?

iPhone and Android, from a single build. An Android home-screen biorhythm widget is included; more platform extras are on the way.

Do I need my exact birth time?

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.

Your day,as a number.