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What kind of astrology do you use?

We respect every traditional astrological system, and the calculation engine supports several. The default is Western astrology with the Tropical zodiac and Placidus houses, but every user can change both from their profile. For the zodiac you can choose between Tropical (Western standard), Fagan-Bradley sidereal (Western sidereal), Lahiri (the Vedic/Indian standard), Krishnamurti (the KP system), or Raman (traditional Vedic). For the house system you can pick Placidus, Koch, Campanus, Regiomontanus, Equal, Porphyry, Whole House, or Whole Aries (Aries on the 1st house). All calculations are powered by the Swiss Ephemeris.

How does 12andus calculate the reports?

12andus' astrological reports are calculated by accurately weighing hundreds of astrological elements for each individual person. We consider every planet's positions, aspects, and houses, as well as the subtle relationships between them. We weigh all of these elements and use a proprietary method to infer a person's qualities, traits, relationship qualities, and forecast future qualities and attitudes.

It seems you give more importance to inner qualities and states rather than the facts of life.

Astrology is more about inner states than actual events. Unfortunately, popular astrology has altered this by focusing on events, which are actually the effects of inner states. If your inner states, for instance, are about being mellow and romantic, then there are more chances for you to find a lover. Thus, we concentrate on your inner states, which are the root of your external life events.

If I don't know my birth time, are the astrological reports still accurate?

We work hard to give you the best possible report even in the case of an unknown birth time, but be aware that in such a case, some astrological elements will be missing, specifically the 12 houses and the accuracy of the moon position. Those are important elements of a personalized horoscope, so the reports will be less accurate.

What about typical horoscopes based solely on the sign?

There's absolutely no astrological value in that. The "sign" is only the position (not even precise to the degree) of the Sun, which is one among many elements of a horoscope. Astrology works only when it is personalized with a person's birth data.

How are personalized astrological reports different from generic sign astrology?

The "sign" is the position of the Sun in the zodiac at birth. While the Sun is an important element, an astrological reading considers the planets, nodes, 12 houses, and the complex interactions between them. Furthermore, personalized astrology evaluates the exact position of the Sun at birth, while generic signs don't. A Sun placed at the beginning of a sign may experience very different aspects with other planets than a placement at the end of the same sign. In other words, generic sign astrology is inaccurate, incomplete, and most of the time just off-target.

What's in the Birth Chart report?

The Birth Chart report is a full personalized reading of your natal placements, organized by life topic β€” qualities, traits, predispositions, work, love, spirituality, growth, challenges. The system weighs every planet, every aspect, and the houses they fall in, drawing from a library of hundreds of thousands of interpretation pieces and assembling the ones that match your exact placements. Each section explains why a quality emerges from your chart, citing the specific astrological combinations behind it.

What are Aspects, Combos, and Houses?

Aspects are the angular relationships between planets at the moment of your birth β€” conjunctions, oppositions, trines, squares, sextiles. They describe how energies in your chart support, challenge, or amplify one another. Houses are 12 life-area divisions of the sky measured from your Ascendant: home, work, relationships, partnerships, transformation, philosophy, career, friendships, and so on. Combos are blends of multiple chart elements that converge on a single quality β€” e.g. a deeply sensitive nature might come from Moon + Pisces + 4th house combined.

What are the Asteroid readings?

In addition to the classical Sun-through-Pluto, the report includes Chiron, Lilith, Ceres, Pallas, Juno, Vesta, Pholus, and Eros. Each adds a layer the classical planets don't capture: Chiron describes wounds and the path to healing; Lilith, the rejected and reclaimed feminine; Ceres, nurturing; Pallas, strategy; Juno, committed partnership; Vesta, devotion; Pholus, sudden lasting change; Eros, erotic style. Asteroids are part of the Birth Chart report, and their full interpretations are free for everyone.

What's the Trait Map?

The Trait Map is a visual radar of your dominant inner qualities β€” how strongly "creative", "analytical", "sensitive", "adventurous", "responsible", and dozens of others register in your chart. It collapses the entire weight-and-balance of your placements into a single picture you can read at a glance, and it's the entry point to deeper readings: tap any trait to see exactly which placements feed it.

What's Synastry vs Composite?

Synastry compares two charts side by side and looks at the aspects each person's planets make to the other's β€” e.g. how your Moon talks to their Mars. It explains how each individual affects the other. Composite charts treat the relationship itself as a third entity with its own birth chart, derived from the midpoints of both. Synastry is "what happens between us"; composite is "who we are together".

What's Trait Pair?

Trait Pair is a side-by-side projection of both partners' Trait Maps, highlighting where dominant traits align (shared strengths), complement (one fills the other's gap), or clash (potential friction). It's the fastest way to read a relationship's dynamic before going into the detailed synastry and composite reports.

How many people's birth data can I store?

As a free member, you can store up to 50 birth-data records β€” yourself plus 49 friends, family members, partners, or anyone else you want to read. Premium members have no limit. Birth data you enter remains private and is never shared, even when you run reports against it.

Can I run a relationship report with someone who isn't on 12andus?

Yes. Add their birth data manually to your private birth-data list and run any relationship report against your own chart. The data stays private to you β€” they don't need an account, and nothing is shared back.

What's a Forecast vs a Horoscope?

A forecast is computed for a specific date and your birth chart β€” it tells you what's active for you at that moment. A horoscope (weekly, monthly) summarizes the major transits over a window. Both are personalized to your natal placements; the difference is in time scope. Use a forecast when you have a specific date in mind (a meeting, a trip); use horoscopes for general orientation.

What are Transits?

The current real-time positions of the planets and how they aspect your natal placements. When transiting Jupiter trines your natal Sun, that's a window of expansion; when Saturn squares your Mercury, that's a period of disciplined communication challenges. The Upcoming Transits report lists the most powerful transits ahead, ranked by importance.

What's a Transit Inquiry?

Transit Inquiries is a search tool for transit events, past or future: pick a transiting planet, an aspect (or a sign it enters) and a point of any chart in your birth-data list β€” a planet, an asteroid, a house cusp, or a custom point you add β€” or another planet in the sky, and it lists the dates, e.g. every time Jupiter trines your natal Sun in the next five years, or when Saturn and Neptune meet in the sky. Several conditions can be combined in one search, and searches can be saved. Free members can run 5 searches every 24 hours; Premium members can run up to 100. For a question in your own words about a date or a period ("How will my meeting on November 12 go?"), ask the AI Astrologer Chatbot instead.

What's the Relationship Forecast?

A forecast applied to the composite chart of two people β€” the relationship's own future, not either individual's. Useful when planning a shared decision (a trip, a co-investment, a wedding date) or to anticipate a stretch of friction or harmony.

What are the AI chatbots (AI Astrologer Chatbot, Wisdom Paths)?

Two AI assistants, each grounded in your real chart data β€” they don't make up generic astrology, they compute against the same placements the precomputed reports use. The AI Astrologer Chatbot answers any question about you ("What's my best career direction?", "Why do I keep avoiding intimacy?"); pick a second person from your birth-data list and it answers about your relationship ("What's the deeper purpose of our connection?"). Name a period in your question ("next month", "in 2027") and it reads the transits of that period. The Wisdom Paths Chatbot reads your chart through a spiritual or psychological tradition you choose β€” Jungian, Buddhist, Christian mysticism, Advaita Vedanta and others. Free members can ask 24 questions a month, Premium members 120.

Are the AI answers reliable?

Each response is computed against your actual chart and includes the placements it drew from at the bottom of the answer (e.g. "This interpretation is related to Venus 13Β° 53' Taurus opposition Neptune 8Β° 46' Scorpio"), so you can verify the reasoning. The AI is grounded; it doesn't hallucinate planets you don't have. That said, AI essays are a complement to the structured reports, not a replacement β€” when you want the canonical interpretation of "Mars in the 8th house", the precomputed report is more thorough.

What's the difference between an AI essay and a regular report?

Regular reports draw from a library of hundreds of thousands of interpretation pieces, hand-written for specific astrological combinations, and assemble the ones that match your placements. AI essays generate fresh prose tailored to your specific question, citing the same chart elements. Reports are deeper for canonical questions; AI essays are better when you have something specific to ask.

What are Initiation, Passages, and Crossroads?

Three gamified paths through your chart, each working a different timescale. Initiation is a guided self-discovery sequence based on your dominant placements β€” short readings, then questions that invite you to reflect on what each planet/sign teaches in your life. Passages highlights the most powerful active transits as life transitions, telling you what gateway you're walking through right now. Crossroads surfaces important relationship moments via synastry transits β€” when something between you and someone in your birth-data list is about to shift.

Do I have to do them in order?

No. They update independently based on what your chart and the current sky offer, so you can engage with whichever path resonates today. Each step earns Plutokens, so even working through them slowly accumulates rewards.

What are Plutokens?

Plutokens are the site's reward currency, named after Pluto (transformation). You earn Plutokens by engaging with the platform β€” answering the Daily Quiz and completing Initiation/Passages/Crossroads steps. Each Plutoken is worth $1 of credit on PDF reports and Themed PDFs: your balance is applied automatically at checkout, covering up to 60% of the price, in whole dollars (rounded down). So the more you engage with the site, the cheaper future PDFs get.

What's the Daily Quiz?

The Daily Quiz is one astrology question per day, drawn from the same knowledge base that powers the reports. A correct answer earns 1 Plutoken. A streak of 7 consecutive correct days earns a +3 Plutoken bonus on the seventh day, and the bonus repeats every additional 7-day streak (14, 21, 28…). It's a way to learn astrology in small daily doses while accumulating rewards.

What's the difference between an on-site report and a PDF?

On-site reports are interactive and free (with a daily limit of 12 reports for non-premium users in any rolling 24-hour window). PDFs are professionally formatted, considerably longer than the on-site versions, downloadable, and yours forever once purchased: useful as gifts or for offline reading. Premium members get unlimited on-site reports, 20% off every PDF, and free PDF coupons with every payment (one with the monthly plan, three with the quarterly), each good for any PDF reading or classic report.

What can I build on the PDF page?

On the PDF page you choose a reading (a birth chart, a synastry, a forecast of one to twelve months, the Trait Map, astrocartography, a planetary return and many more) and then make it yours: its length (2,000, 5,000 or 10,000 words), the interpretative approach (psychological, evolutionary, Jungian, transpersonal or karmic), how technical it is, the area you care about most, and who it is written for (an adult, a teenager or a child). For two people you also say what kind of bond it is, from love partners to father and daughter or colleagues. The price adds up as you choose, from $9. You can make a sample with your choices before buying.

The reading is written by AI from your chart, which 12andus calculates itself: the positions, aspects, houses and transits are computed, never generated by AI. How we use AI explains what the AI does and what it does not. Below the builder are our classic PDF reports, long readings from our library written in advance by astrologers.

Can I get a free PDF?

Yes. Every new account is issued the 12anduswelcome coupon, which covers your first PDF reading: any reading of 2,000 words on the PDF page, applied at checkout. Premium members also receive coupons with every payment (one a month on the monthly plan, three a quarter on the quarterly), and those cover any PDF reading or classic report.

What does Premium include?

Premium removes the 12-reports-per-24h cap and unlocks: unlimited reports and birth-data slots; 120 AI chatbot questions a month (free members: 24); the AI readings read aloud to you, as often as you like; Transit Inquiries up to 100 searches a day (free: 5); Best Time up to 365 days ahead and for couples (free: the next 7 days, for you); the extended 3-month upcoming transits report; the Daily Cosmic Email and your daily video horoscope by email every morning; your daily horoscopes in Google Calendar or any calendar app; unlimited messages with read receipts; anonymous profile browsing; searching members by Moon, Mercury, Venus and Mars; a one-week Premium gift for a friend every month; and free PDF coupons with every payment. Premium is $9.99/month or $24.99/quarter with no commitment β€” cancel any time. All the details are on the Pricing page.

How do I cancel?

More menu β†’ My Subscriptions β†’ Cancel. One-click cancellation; your Premium access continues until the end of the period you've already paid for, then drops back to free tier without further charge. No retention dialogs, no confirmation emails β€” once you click cancel it's done.

Who can see my profile?

Only what you choose. By default your profile is private β€” your birth data is never shared. If you set your profile to "Social", your age and country become visible to other members, but the exact birth date and birth location are still hidden. Members you've befriended can see slightly more, depending on your privacy settings.

What can social and non-social members do?

You choose with the Social setting in your profile, and you can change it at any time. Both get every astrological report, reading, forecast and AI feature, and both can keep a private list of birth data for anyone they like and compare charts with the people on it.

Social members also:

  • appear in the members list and search, with their age and country (never their exact birth date or place);
  • can send and receive private messages, and send and accept friend requests;
  • can comment on articles;
  • can see their areas of mutual attraction with other social members, and who visited their profile;
  • can share their profile link, so that visitors can explore their compatibility with them.

Non-social members keep their profile hidden: nobody can find it or see it, and they do not appear in the activity feed. In exchange they cannot send or receive messages, add friends, comment on articles, or see mutual attraction and profile visits.

How do I match with compatible people?

Use the Members directory to search by gender, age range, distance from a city, and the signs of the Sun and Ascendant β€” Premium members also of the Moon, Mercury, Venus and Mars. Open a member's profile to run your relationship reports with them (Trait Pair, synastry, composite), then send a message or a friend request.

What are Memes?

Memes are auto-generated images mashing astrology themes with your dominant placements β€” shareable on social, useful for breaking the ice in conversations.

What are Personal Songs?

Personal Songs are AI-composed soundtracks tailored to your chart's signature: one for your Sun sign, one for your Moon, one for Mercury, Venus, and Ascendant. Each captures the mood of the placement in actual music you can listen to.

Can I change my username?

No β€” the username (the URL handle, e.g. 12andus.com/profile/Heather4729) is set when your account is created and can't be changed afterward. What is editable is the display name β€” the name shown next to your posts and on your profile page. Edit it any time from Settings β†’ Edit profile.

How do I delete my account?

Settings β†’ Delete My Account. You're asked to type "DELETE" to confirm and you can leave a short reason (optional). Once confirmed the deletion is immediate: any Premium subscription is cancelled, your name, email, profile, friendships and what the chatbot remembers about you are removed, and you're logged out everywhere. Posts and comments you made in public stay up, without your name. The deletion is final; there's no undo.

Is the birth data I input kept private?

Yes, it is. However, your own birth data, the one you set in your profile, will be shared, but only with 12andus members you choose to befriend.

What languages does 12andus support?

The interface is translated into 16 languages: English, Italian, Spanish, French, German, Portuguese (Brazil), Russian, Japanese, Chinese, Arabic, Hindi, Turkish, Indonesian, Serbian, Thai, and Persian/Farsi. The astrological readings themselves β€” the actual report text β€” are available in 13 of those: English, Spanish, French, German, Italian, Portuguese, Turkish, Russian, Arabic, Chinese, Japanese, Hindi, and Indonesian.

Is there a mobile app?

Not yet, but it's on the way. A native iOS and Android app mirroring the main features β€” Initiation, Passages, Crossroads, Daily Quiz, the astrologer chatbot, saved reports, push notifications for major transits β€” is in active development. The site itself is fully responsive in the meantime, so the mobile browser experience already covers the full feature set.

How do I connect with other members?

Open Members (in the More menu). There you see who viewed your profile and who checked your compatibility with them, your pending friend requests, and the member search. On a member's profile, press "Befriend" to send a friend request (the other member approves it on their Friend Requests page) or send a message from Messages. Free members can send 2 messages and about 5 friend requests every 24 hours; Premium members have unlimited messages, 50 friend requests a day, and see when their messages are read. Premium members can also browse profiles anonymously (Settings β†’ Account). If you prefer not to be contacted, turn on "Disable Social and Friendship Options for Me" in your profile settings.

How do I search for members with specific placements, e.g. Scorpio men with Venus in Libra?

In the search on the Members page, choose the gender, an age range and, if you like, a distance from a city, then a sign for any of the Sun, Ascendant, Moon, Mercury, Venus and Mars. For Scorpio men with Venus in Libra: Men, Sun in Scorpio, Venus in Libra. Free members can search by the Sun and the Ascendant; the Moon, Mercury, Venus and Mars are for Premium members. The search covers members who completed their profile and did not opt out of social features; houses and aspects are not search criteria.

Can I look up celebrities' charts?

Yes. On your Birth data page press "Add a celebrity" (or go to Celebrities): search by name, birthday, birth date or country, or pick one of your charts to find celebrities who share its placements or aspects. Add a celebrity to your list and you can run any report with them, relationship reports included.

What are event charts?

An event chart is the chart of a moment, cast for the time and place it happened. On your Birth data page press "Add an event" (or go to Event charts): pick a moment from a library of more than 2,000 events (the founding of a nation, a discovery, an earthquake, a concert, a final), or create your own. Your own event can be personal (a new job, a move, a birth), of a couple (the day you met, your wedding) or general (a launch, a match). Each event joins your birth data list with its own chart and is private, like the rest of your birth data; you find them all on Your events. The event page shows the chart with its placements and houses; a personal event is also shown as transits to that person's birth chart, and a couple event as transits to their composite chart. The AI astrologer can read the event chart, which uses one of your chatbot questions, and a longer PDF reading is offered on the page. Events count toward your birth data entries, and reports written for a person cannot be run for an event.

Can I save readings and chatbot answers?

Yes. Under a chatbot answer, press "Save this Q&A": your saved answers are in My Saved Q&A, where you can download them as a text file or delete them. Many reports and AI readings have a "Save this reading" button: those are in My Saved Readings. The PDFs you bought are in My PDF Reports (More menu). Saving is free and has no limit.

Where is the library of placements and aspects?

The Library (the Blogs in the menu) holds hundreds of articles, one for each planet in a sign, planet in a house and aspect β€” in the birth chart, in synastry, in the composite chart and in transits. Use the search on that page: choose the chart type, then tick the planets, aspects, signs or houses you want. You can also browse by topic, e.g. all of Mars in synastry at /blog/topic/synastry/mars.

Do you use AI? How?

Yes, for the written readings: the AI astrologer's answers, the syntheses and the AI-written PDFs are written by AI models from your chart, which 12andus calculates itself. The charts, positions, aspects and transits are calculated, never generated by AI. How we use AI explains what AI does on 12andus and what it does not.

What does the AI chatbot remember about me?

The AI Astrologer Chatbot remembers what you tell it, so you don't have to repeat yourself. On What the chatbots remember you see all of it: you can delete any item, exclude any answer from memory, and see the prompt an answer was written from. Sensitive subjects (such as health) are remembered only if you agree. How we use AI, and what it does not do, is on How we use AI.

Can I talk to the chatbot, or have the readings read aloud?

Yes. Press the microphone next to the question box to ask by voice β€” free for everyone. "Read this to me" under an AI reading reads it aloud: free members can try it once, Premium members as often as they like.

Where are my daily reading and daily video?

Your personal daily reading and daily video horoscope are on your home page and the Activity page, free. Premium members can also receive them by email every morning in the Daily Cosmic Email (with the most important transit and the exact transits of the day), set in your notification settings, and add their daily horoscopes and videos to Google Calendar or any calendar app from the daily video box.

What are the Advanced reports?

Techniques beyond the natal chart and transits, on the Advanced reports page: astrocartography (the best places on Earth for you, and for a goal), couple astrocartography (places that suit you both), planetary returns (solar, lunar, and the returns of the other planets), and the Davison relationship chart with its transits. Each can be read by the AI astrologer, which uses one of your chatbot questions.

What is Best Time?

Best Time finds the best days for 22 life events β€” signing a contract, a trip, a first date, a launch… β€” from your transits. Free members see the next 7 days for themselves; Premium members up to 365 days ahead, and for the two of you with a partner.

What is the "synthesise" button on reports?

Many report sections have a button that asks the AI astrologer to write one reading of the whole section β€” about 300 words thatpull its placements together, instead of reading each card on its own. It uses one of your chatbot questions; once written, the synthesis stays yours. A longer synthesis of about 2,000 words is available as a PDF.

Can I give Premium to a friend?

Yes: with every Premium payment you get a link to a one-week Premium gift to share with a friend. Your friend opens the link and the week starts as soon as their profile is complete. Each person can receive a gift week once, and only if they have never paid for Premium themselves.

Is there a referral program?

Yes. On the Referral page you get your personal link: you earn Plutokens, and money, when the friends you bring join and buy.

Mission

Astrology is neither an exact science nor is it deterministic. However, through astrology, we can gain deep self-knowledge. Astrology can uncover aspects of ourselves that might be difficult for us to see through other means. Astrology is the reverberation on the inner plane of the outer planets.

We created 12andus to help people reveal their unique astrological birth qualities and how they match with others. Every relationship, just like every individual person, is a unique constellation of compatibilities and qualities.

We can match another person on many levels: romantic, friendship, business, and spiritual. When we are with a certain person, our connection becomes almost like an independent entity with its own traits. With different people, we may feel practical, affectionate, artistic, sensual, and adventurous, or we may feel lazy, superficial, and argumentative.

12andus will show you the harmonious and challenging qualities that exist between any two people. In addition to individual birth reports and relationship reports, we offer forecasts and relationship forecasts.

Another aspect of 12andus' mission is to collect surveys and big data to statistically demonstrate that astrology works. Research and discovery are our ultimate goals.


Ivo Quartiroli,
12andus' creator, book publisher and software programmer with a lifelong passion for astrology.

Biography

Complementing my professional accomplishments in information processing and astrology, my interests in consciousness processing has led me to different path toward self-understanding as meditation, work on chakras, rebirthing, tantra, massage.

At 21 years old, I developed one of the first astrological software programs with a number of innovative features such as the ability to search for the individual dominant planets in a chart. My interest in astrology quietly developed for thirty more years while I was working as a book publisher (I founded the Apogeo and Urra publishing imprints in Italy).

My most recent book is The Digitally Divided Self: Relinquishing our Awareness to the Internet, which has been praised by the most representative technology and media thinkers. Intersecting media studies, psychology and spirituality, The Digitally Divided Self exposes the nature of the malleable mind and explores the spiritual and philosophical influences which leave it obsessed with the incessant flow of information. The book have been published in English, Italian and Chinese.

I share my perspective on the intersection of media studies, psychology and spirituality on indranet.org and I'm part of the Italian Club of Budapest’s science committee. Since 2003 I manage an Italian blog about spirituality, psychology, sexuality and society at innernet.it.