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Free Ancestral Birth Chart Calculator
Discover Your Horoscope Across 7 Generations
350+ planetary calculations mapped across ancestral generations
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Enter Your Birth Data
Date, time (optional), and gender - takes 10 seconds.
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Map 7 Generations
We calculate planetary positions for you and 6 ancestor generations.
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Discover Your Blueprint
Explore traits, blessings, totems, and personalized insights across your lineage.
Enter Your Birth Data
❔ FAQ
Horospire is an ancestral horoscope platform inspired by ancient Zoroastrian cosmology (the Bundahishn and Avestan Fravashi tradition) and modern epigenetic science. It maps your birth chart across 7 ancestral generations using the classical planetary order - Sun through Saturn - to reveal inherited traits, ancestral patterns, and your unique cosmic blueprint.
The 7 generations follow the ancient planetary order: 1st Sun/Hvarenah (Yourself), 2nd Moon/Mah (Parents), 3rd Mercury/Tir (Grandparents), 4th Venus/Anahid (Great-grandparents), 5th Mars/Wahram (Great-great-grandparents), 6th Jupiter/Ohrmazd (GGG-grandparents), 7th Saturn/Kaywan (GGGG-grandparents). Each planetary position reveals traits inherited from that ancestral generation.
Fravashi are ancestral guardian spirits in Zoroastrian tradition (Avesta, Yasht 13) - the idea that ancestral spirits influence descendants through seven generations is the philosophical root of our system. Modern epigenetic research independently confirms this: the Overkalix study showed grandparents' nutrition affecting grandchildren, the Dutch Hunger Winter study revealed 5th-generation cardiovascular effects, and Rachel Yehuda's work on Holocaust descendants showed altered stress hormone profiles across generations.
All planetary positions are calculated using precise astronomical ephemeris data. Core results - zodiac signs, Lilith/Selena positions, totem animals, blessings, hexagrams, cosmic energy windows - are computed by proprietary algorithms based on historical astrological sources, not generated by AI. Advanced models are only used as a second step to further interpret the already-calculated output. Horospire is designed for self-reflection and entertainment, not scientific prediction.
Your birth date (day, month, year), birth time (if known), and gender. The more precise your birth time, the more accurate Moon sign and time-sensitive calculations will be. Even without an exact birth time, you will still receive a comprehensive ancestral analysis.
Two calculated lunar points in your chart form the core of Ancestral Patterns. Lilith (Black Moon) reveals inherited challenges - recurring struggles passed down through your family line. Selena (White Moon) reveals inherited gifts - positive strengths your ancestors cultivated. The system detects pattern types like Core Echo, Mirror Pattern, Amplified Echo, and Rooted Shadow for challenges, and Core Light, Inherited Harmony, Amplified Light, and Rooted Gift for blessings.
Your totem animal comes from a 32-year Zoroastrian calendar cycle - it represents your innate nature and archetypal energy (each totem has an anti-totem representing opposing energy). The hexagram connects your 7th generation (Saturn/Kaywan) to the I Ching, revealing karmic patterns from your deepest ancestral roots.
A section connecting each of the 7 ancestral generations to peer-reviewed epigenetic research. It shows your actual zodiac sign for each planet alongside relevant studies - from cortisol receptor genes (parents) to the Overkalix nutritional study (grandparents) to transgenerational stress hormone research (6th generation).
A unique Horospire feature that maps the 7 universal laws from the Hermetic tradition (The Kybalion) to your ancestral birth chart. Each principle - Mentalism, Correspondence, Vibration, Polarity, Rhythm, Cause & Effect, and Creative Balance - is scored 0-100 based on your planetary placements, element balance, and ancestral patterns. The result is your Hermetic Quotient (HQ), a composite score mapped to alchemical stages from Uncut Stone to Philosopher's Gold. Each principle is grounded in peer-reviewed science, from quantum physics to transgenerational epigenetics.
Free users see their overall HQ score, the animated heptagram visualization, and one fully unlocked principle (Polarity). Paid users unlock all 7 principles with detailed breakdowns. Yearly and Pro subscribers also get AI-powered deep dives into each principle.
Life Guidance is designed for real-life decisions - "Should I take this job?", "How do I fix my relationship?". Unlike the casual Chat (quick short replies), Life Guidance uses a higher-level model that produces one in-depth, structured answer per question, weaving together your full chart - citing specific planetary placements, ancestral patterns, element balance, and current life period. Available for Yearly (3/day), Pro (10/day), and VIP (unlimited).
The Family Tree Builder maps multiple family members' horoscopes and detects shared patterns across your lineage - recurring Lilith/Selena patterns, element distribution, Mirror Patterns between parent-child pairs, and Inherited Harmonies. Compatibility Analysis compares two charts across all 7 generations plus ancestral patterns, showing love, career, and friendship scores, and cross-healing dynamics where one person's ancestral gift addresses the other's shadow.
Fun, AI-generated entertainment features. The Roast is a humorous take on your specific chart placements. The Past Life Reading imagines who you were in a past life based on your Saturn and Moon signs. Both are clearly labeled as entertainment.
A private space to save personal reflections and notes attached to your analysis. Track how ancestral patterns show up in your daily life, record insights, and build a personal log of your cosmic exploration.
A suite of advanced astrological tools available to Pro subscribers. It includes Secondary Progressions (life timing through progressed charts), Solar Returns (annual birthday charts), Lunar Returns (monthly charts), Annual Profections (classical annual timing), Harmonics (harmonic division charts), Fixed Stars (major star conjunctions), Arabic Parts/Lots (classical sensitive points), Composite Charts (relationship analysis with synastry and Davison charts), and Firdaria (7-planet time lord periods). All tools use the same precise ephemeris data as your core reading.
Secondary Progressions advance your birth chart by one day per year of life to reveal evolving themes and timing. Solar Returns cast a chart for the exact moment the Sun returns to your birth position each year, showing annual themes. Lunar Returns do the same monthly, mapping shorter emotional and psychological cycles. All three are essential timing techniques in professional astrology.
Annual Profections are a classical technique that activates a different house and its ruling planet (Time Lord) each year of life, cycling through all 12 houses. Firdaria divides life into major planetary periods (Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn) with sub-periods, showing which planet governs your current life phase. Both help you understand what themes are active right now.
Harmonics divide the zodiac into harmonic numbers (H2-H360) to reveal hidden patterns - your age harmonic is particularly revealing. Fixed Stars checks if any of 30 major stars (like Regulus, Algol, Spica) conjunct your planets. Arabic Parts (Lots) calculate 14 classical sensitive points like the Part of Fortune, Part of Spirit, and Part of Marriage by combining planetary positions. These are advanced techniques used in traditional and modern professional astrology.
Composite Charts combine two birth charts into one relationship chart showing the dynamics between two people. The tool includes both the Composite method (midpoints of each planet pair) and the Davison chart (time-space midpoint), plus full Synastry aspects showing how your planets interact with the other person's. Includes Venus-Mars dynamics, Sun-Moon compatibility, and element harmony analysis.
No. The Natal Chart (planetary positions, house placements, dignities, chart ruler) and Aspects analysis (conjunctions, oppositions, trines, squares, sextiles, aspect patterns) are available to all paid plans including Single Reading. Only the advanced tools (Progressions, Returns, Profections, Harmonics, Fixed Stars, Arabic Parts, Composite Charts, Firdaria) require Pro.
Horospire offers several free tools: Daily Cosmic Weather (moon phase, dominant planet, retrogrades), Weekly and Love Horoscopes for every sign, Monthly Horoscopes, Daily Tarot card draw, Mercury Retrograde tracker with shadow phases and survival tips, Moon Sign Calculator, Rising Sign Calculator, and Numerology Calculator (Life Path, Expression, and Soul Urge numbers). All are available without an account.
Beyond the free daily card draw, Tarot Spreads let you draw multiple cards in classic layouts for deeper readings. The Three-Card Spread reveals past, present, and future. The Celtic Cross is a comprehensive 10-card reading. Available to paid subscribers.
Shows how current planetary movements interact with your personal birth chart. Highlights active transits, upcoming shifts, and what cosmic energies are affecting you right now. Available to registered users with birth data on file.
Daily Affirmations delivers a personalized affirmation tied to your zodiac profile. The Streak Dashboard tracks your daily engagement - logging in, reading cosmic weather, embracing affirmations. Group Analysis lets you enter birth data for multiple people to see group dynamics, element distribution, and compatibility patterns. Affirmations and Streaks require a free account; Group Analysis is available at /group.
Single Reading ($10.99 one-time) gives permanent access to one full analysis with chat, PDF, and sharing. Yearly Access ($54.99/year) adds higher daily limits, multiple analyses, Life Guidance, and Hermetic AI deep dives. Pro Access ($139.99/year) adds the full Professional Astrology Toolkit with progressions, returns, harmonics, fixed stars, composites, and more. You can preview your Sun sign for free before purchasing.
Yearly ($54.99/year) and Pro ($139.99/year) are recurring annual subscriptions. Cancel anytime from your Profile page - access remains active until the end of your billing period, then you're downgraded to Single Reading limits. No partial refunds for early cancellation.
Yes, to ensure quality. Single: 50 chat messages, 10 rewrites, 5 PDFs, 3 emails/day. Yearly: 100 chat, 30 rewrites, 20 PDFs, 10 emails, 5 analyses, 3 Life Guidance/day. Pro: 200 chat, 50 rewrites, 50 PDFs, 25 emails, 15 analyses, 10 Life Guidance/day. VIP: unlimited everything. Limits reset at midnight UTC.
No. When you purchase a reading, an account is automatically created using your checkout email. You receive a welcome email with a password setup link.
Yes! Gift a Reading (linked from the pricing page) lets you send any plan to someone special - they receive an email with a unique claim link. The Refer a Friend program gives you 5 bonus chat credits for every friend who signs up using your unique referral link (visible on your dashboard). Credits never expire.
Since readings are delivered digitally and immediately, we generally cannot offer refunds after generation. For subscriptions, cancel anytime from your profile to prevent future charges. If you experience a technical issue, contact us and we will resolve it promptly.
Yes. All data is encrypted in transit and stored securely. We never share personal information with third parties except Stripe for payment processing and OpenAI for chat features (only birth data and chat messages are sent - never your name or email). See our Privacy Policy and GDPR page for full details.
Yes to both. Delete your account and all associated data anytime from Profile Settings, or submit a GDPR deletion request (processed within 30 days). You can also download a copy of all your personal data - analyses, journal entries, account information - using the Data Export option on your Profile page.
Yes. Add a passkey (biometric login via Face ID, Touch ID, or security key) and enable two-factor authentication (2FA) from your Profile Settings for extra account security.
What People Discover
"Me and my gf did the compatibility reading together and we were both shook. Like actually accurate it's kinda scary"
Arjun P.
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Scorpio
"Cool concept! Jupiter reading spot on for me and the app looks great"
Kai N.
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Taurus
"PDF export is really nice. You can tell actual thought went into the generational breakdown, not just auto generated filler"
Yuki T.
Virgo
"Solid app, Mercury reading was accurate for me. More tarot options would be cool"
Raj K.
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Scorpio
"App looks amazing but content is hit or miss. Some stuff spot on, other stuff nah. Tarot part is fun tho"
Zara M.
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Capricorn
"THE BIRTH CHART ROAST I was not ready for that level of personal attack lmao. Also past life reading was surprisingly deep"
Mei-Ling C.
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Cancer