Nebula is a mass-market astrology and psychic-guidance product at https://www.asknebula.com/. The About page calls it a spiritual guidance space on both the website and an iOS and Android app. It is not Sanctuary, not Co-Star, not CHANI, not Horoscope.com, and not Astrology.com. The public birth-chart calculator at https://www.asknebula.com/charts/birth-chart asks for date, time, and place and describes a free natal as planets, the Sun, the Moon, twelve signs, and twelve houses. The app page says every user gets a free natal chart with explanations of significant planets and houses from time of birth, plus free daily horoscopes and personalized tips based on zodiac sign and time of birth — not a sun-sign-only column. Love compatibility on that page uses the Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn. Homepage topics also include tarot, numerology, palmistry, and 1:1 chat. The homepage lists a Trustpilot score of 4.3 from 17k+ reviews. The About page lists 900+ psychics and 24/7 availability. The app page cites an App Store rating of 4.8 from 215,382 reviews. Live advisor chat is billed when a reading starts; the homepage advertises a new-client deal of 3 minutes plus 80% off the first reading. Charges that do not appear in App Store/Play because they were purchased on the web (a web plan). People still look for alternatives because they want a documented VSOP87 + IANA Big 3 with no account, a different live-reader marketplace, practitioner software, or beginner placement copy. Those are different jobs. This note does not rank a winner.
The options, with tradeoffs
- Nebula — A spiritual-guidance product on the web and in an iOS and Android app: free natal chart, daily horoscopes from zodiac sign and time of birth, compatibility, tarot, numerology, and live 1:1 chats with psychics and astrologers. The public calculator lives at https://www.asknebula.com/charts/birth-chart.Good for: An app natal plus horoscopes that use birth time, then a live advisor when the question is timely.Tradeoff: The distinctive product is the psychic-guidance marketplace around the natal, not a documented self-serve engine you can re-run. Charges that do not appear in App Store/Play because they were purchased on the web (a web plan). Nebula is not Sanctuary.
- Charting Stars — A browser observatory: enter birth date, time, and place and get a free Big 3 — Sun, Moon, and Rising — with no account required.Good for: A browser Big 3 from VSOP87 positions with IANA timezone resolution for the entered birthplace, then an optional paid Hellenistic reading from that same birth moment.Tradeoff: Whole-sign is the house system, and the free preview is the Big 3, not Nebula’s app natal, birth-time horoscopes, or live advisor chat. If you want a human on the other end, stay on Nebula or Sanctuary.
- Sanctuary — A marketplace on the web and in an iOS and Android app for live 1:1 chat or video with professional astrologers, tarot readers, and psychics, plus free daily and monthly horoscopes, daily transits, tarot, and unlimited birth-chart details in the app.Good for: A conversation with a human reader when the question is timely, or the app’s free horoscopes and birth-chart details as a daily ritual on the phone.Tradeoff: Sanctuary is a different live-reader product from Nebula. Both have live 1:1 advisors; they are not the same marketplace, natal, or horoscope stack.
- TimePassages (AstroGraph) — AstroGraph’s desktop, mobile, and TimePassages 3.1 web app: natal, transits, synastry, and click-to-read interpretations by Henry Seltzer, with one login across iPhone, Android, and the web.Good for: Practitioners and students who want software they can keep, with house-system switches and a built-in city atlas.Tradeoff: Desktop, mobile, and the 3.1 web app are signed-in, not Nebula’s psychic-guidance app or Charting Stars’ no-account browser Big 3.
- Cafe Astrology — A natal calculator paired with a large library of beginner articles for each planet-in-sign and house, written by Annie, with Placidus as the default house system.Good for: A gentle first reading of placements, one paragraph at a time, plus free compatibility and transit reports, with no email account.Tradeoff: The text describes placements individually. It does not synthesize a whole chart the way a written reading does.
How to choose
Pick Nebula if the job is an app natal, horoscopes from sign and birth time, and live 1:1 advisor chat on asknebula.com. Pick Sanctuary if the job is that other live-reader marketplace on the web plus iOS and Android. Pick TimePassages if the job is signed-in software you keep. Pick Cafe Astrology if the job is beginner placement copy.
Pick Charting Stars if the job is a self-serve natal in the browser — VSOP87 positions, IANA timezones, no account to generate the Big 3 — and you may later want a written reading from that same birth moment.
These tools can sit next to each other. A Nebula alternative is not a claim that the app failed; it is a different instrument for a different job. Nebula is not Sanctuary. CHANI’s daily-ritual product is the app-store app; the site chart at https://www.chani.com/chart is a separate preview. Astro-Seek lives in a further neighborhood: a free web calculator workshop, not a live-advisor app. The Pattern homepage CTA is GET YOUR NATAL CHART, and its web natal chart at https://www.thepattern.com/natalchart uses Whole House houses. Astrology.com’s natal is email-gated at https://www.astrology.com/birth-chart. Horoscope.com is a distinct portal with a Free Birth / Natal Chart Calculator at https://www.horoscope.com/birth-chart/.
Common questions.
What is a Nebula alternative?
Anything that starts from a birth chart but is not Nebula’s astrology-and-psychic product: a no-account browser Big 3 such as Charting Stars, Sanctuary’s separate live-reader marketplace, practitioner software such as TimePassages, or a beginner encyclopedia such as Cafe Astrology.
How does Charting Stars differ from Nebula?
Nebula is a spiritual-guidance product on the web and in an iOS and Android app, with a free natal, horoscopes from zodiac sign and time of birth, and live 1:1 advisor chat. Charting Stars uses VSOP87 geocentric positions, IANA timezone resolution, and Whole-sign houses, and shows a free Big 3 with no account required. Both can start from a birth moment; they do not do the same job.
Does Nebula have a birth chart?
Yes. The site has a free natal chart calculator at https://www.asknebula.com/charts/birth-chart that takes date, time, and place and describes planets, the Sun, the Moon, twelve signs, and twelve houses. The app page says every user also gets a free natal chart with explanations of significant planets and houses from time of birth. That is different from a no-account browser Big 3 or Sanctuary’s app birth-chart details.
Is Nebula the same as Sanctuary?
No. Both have live 1:1 advisors, but they are not the same product. Nebula is the asknebula.com astrology and psychic-guidance stack with its own natal calculator and app. Sanctuary is a marketplace at sanctuaryworld.co on the web and iOS and Android, with live 1:1 chat or video and free horoscope and birth-chart layers. Do not flatten one as the other.
Are Nebula’s website and app the same subscription?
Charges that do not appear in App Store/Play because they were purchased on the web (a web plan). The About page lists overlapping but not identical tools on the app and the website. Confirm billing on Nebula’s own support pages.
Do I need an account to cast a Charting Stars chart?
No. On https://chartingstars.com/chart you enter birth date, time, and place and the free Big 3 preview returns without an account. An email is only for optional capture after you have already seen the preview.
Which of these is the best Nebula alternative?
It depends on the job. There is no single winner. An astrology-and-psychic app, a different live-reader marketplace, a no-account Big 3, practitioner software, and beginner articles are different products that happen to share a birth date.
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