Lunar Haus vs Astro.com
Birth chart calculator
Lunar Haus vs Astro.com
Astro.com, run by Astrodienst, is the accuracy standard the whole industry leans on. It is also email-gated, advert-supported, and its free interpretations are, by its own description, written for teenagers. Here is the free, grown-up alternative.
Cast your free birth chartThe short version
Who each one suits
Astro.com is where professional astrologers go for the most precise possible chart and an enormous set of advanced options. If you need that precision and pedigree, nothing beats it. Lunar Haus is for the far more common case: you want to understand your own chart, in warm adult language, on one page, for free, without creating a profile.
Side by side
Feature by feature
| Lunar Haus | Astro.com | |
|---|---|---|
| Price | Free | Free, with paid reports |
| Calculation accuracy | Arcsecond-accurate (Moshier) | Swiss Ephemeris: the industry standard |
| Account or email | None | The interpreted portrait asks you to create a profile with an email |
| Adverts | None | Yes; a paid report removes them |
| Interpretation tone | Written for adults, reflective | Free texts are, in its words, "mainly directed at children and teenagers" |
| Whole-chart synthesis in one read | Yes | Click-per-element snippets that can contradict each other |
| House systems | Seven | Fourteen plus |
| Advanced tools | Core chart, synastry, transits | Vast: databank, ephemerides, every technique |
| Mobile | Built for phones | No app; legacy web |
Where Astro.com wins
Fair credit, plainly given
We will not pretend here. Astro.com maintains the Swiss Ephemeris, the high-precision engine that most other astrology software, ours included in spirit, is measured against. It carries interpretation by names like Liz Greene and Robert Hand, an 80,000-record birth databank, ephemerides spanning thousands of years, and more house systems and chart types than anyone else. For professional depth and pedigree, it is the standard.
Where Lunar Haus wins
The honest advantages
Accurate enough that you would never see the difference. We use the Moshier ephemeris, which is accurate to about an arcsecond and is the very fallback engine built into Swiss Ephemeris. For your signs, houses and aspects, our chart and theirs agree. What we cannot claim is the badge; what you cannot see is the gap.
No email wall, no adverts. Astro.com asks you to create a profile with an email to see its interpreted portrait, and the free site carries advertising. Ours asks for nothing and shows nothing.
Written for you, not for children. Astro.com describes its own free texts as aimed at children and teenagers, and readers have long noted how negative and confusing the output can feel. Ours is one warm, adult, reflective read, on a design that works on your phone.
Questions
Frequently asked
Is Astro.com more accurate than Lunar Haus?
Astro.com uses the Swiss Ephemeris, the industry accuracy standard. Lunar Haus uses the Moshier ephemeris, which is accurate to about an arcsecond and is Swiss Ephemeris's own fallback engine. For signs, houses and aspects the two agree; the difference is invisible in a birth chart.
Does Astro.com require an account?
To see its interpreted AstroClick Portrait, Astro.com asks you to create a profile with a valid email. Lunar Haus needs no account or email at all.
Why are Astro.com's interpretations aimed at children?
By its own description, the free portrait texts were written mainly for children and teenagers, with adult alternatives for some. Lunar Haus writes one adult, reflective reading for everyone.
Should I still use Astro.com?
If you need professional-grade precision, advanced techniques or its birth databank, yes, it is the standard. For understanding your own chart in plain language for free, Lunar Haus is the easier read.