This is the comparison table from best AI natal chart tools and best natal chart calculators, written out one tool at a time so that a program can read it as easily as a person: twelve tools, ten properties, the same cells. Every value below was read from the vendor’s own page, app store listing or help centre on the date shown.
Where a vendor does not state a property, the cell says “not stated” rather than a guess. It means the vendor does not publish that property; it does not mean the tool lacks it. No cell was filled from a review.
NatalChart.AI made this matrix and is one of its rows. Its row is verified from our own published calculation settings, prices and pages. There are no scores, ratings or verdicts here, and the order of the tools is not a ranking. Reviewed every four months. Last check 21 September 2026, next 19 January 2027.
The ten properties
| Property | What the cell records |
|---|---|
| Ephemeris stated | The ephemeris or astronomical data source the vendor names. |
| House systems | The house systems the vendor states the tool offers or uses. |
| Chart without an account | Whether a chart can be drawn without creating an account. |
| No exact birth time | What the tool does when the exact birth time is not known. |
| Interpretation | Who or what writes the interpretation. |
| Names aspect and orb | Whether the tool names the aspect and states its orb. |
| Languages | The number of languages the vendor or its store listing states. |
| Apps | The platforms the vendor states an app for. |
| Export | The export formats the vendor states. |
| Price | The prices the vendor or its store listing states. |
The twelve tools
NatalChart.AI · Astrodienst · Astro-Seek · TimePassages · Cafe Astrology · Co-Star · The Pattern · CHANI · Astro Gold · AstroMatrix · Sanctuary · AstroSage
NatalChart.AI
| Property | NatalChart.AI |
|---|---|
| Ephemeris stated | Swiss Ephemeris 2.10.03 |
| House systems | Placidus only |
| Chart without an account | yes |
| No exact birth time | computes and marks what is undetermined |
| Interpretation | AI, from the computed chart |
| Names aspect and orb | yes, orb in degrees, with applying/separating |
| Languages | 8, interpretation included |
| Apps | iOS · web (no Android) |
| Export | PDF report and chart poster on MAX · JSON through the API |
| Price | free · $3.99/wk · $9.99/mo · MAX $19.99/mo |
Our product. The row follows the product and is verified from our own pages. Sources: natalchart.ai/verify-your-chart · natalchart.ai/llm-hub/natalchart-ai · natalchart.ai/pricing · natalchart.ai/developers.
Astrodienst (astro.com)
| Property | Astrodienst |
|---|---|
| Ephemeris stated | Swiss Ephemeris (DE441 since May 2026) |
| House systems | 23 |
| Chart without an account | yes, as a guest user |
| No exact birth time | option "unknown" → assumes 12:00 noon |
| Interpretation | written reports by named astrologers |
| Names aspect and orb | yes, with applying/separating |
| Languages | 12, not all content translated |
| Apps | web shortcut only |
| Export | PDF chart drawings |
| Price | free charts · PLUS $12.90/yr · PDF $39.90/yr · reports from $69.90 |
Date read: . Vendor site: astro.com. Sources: astro.com/faq/fq_fh_calc_e.htm · astro.com/faq/fq_fh_owhouse_e.htm · astro.com/faq/fq_de_time_e.htm · astro.com/faq/fq_ma_log_e.htm · astro.com/faq/fq_fh_legend_e.htm · astro.com/faq/fq_hp_lnav_e.htm · astro.com/swisseph/swephinfo_e.htm · astro.com/prod/pr_astroplus_e.htm · astro.com/prod/pr_pdfdraw_e.htm.
Astro-Seek
| Property | Astro-Seek |
|---|---|
| Ephemeris stated | JPL DE431 (on its ephemeris tables) |
| House systems | 19 |
| Chart without an account | not stated |
| No exact birth time | checkbox "(unknown time)"; effect not stated |
| Interpretation | reference articles by factor |
| Names aspect and orb | yes, default orbs published |
| Languages | 9 |
| Apps | not stated |
| Export | text export for further analysis |
| Price | free, no paid tier |
Date read: . Vendor site: astro-seek.com. Sources: astro-seek.com/faq · horoscopes.astro-seek.com/birth-chart-horoscope-online · horoscopes.astro-seek.com/astrology-house-systems-calculator · horoscopes.astro-seek.com/jpl-de431-ephemeris-astrology-online-tables · horoscopes.astro-seek.com/chatgpt-ai-astrology-free-birth-chart.
TimePassages (AstroGraph)
| Property | TimePassages |
|---|---|
| Ephemeris stated | not stated |
| House systems | 8 named on the web calculator, more on desktop |
| Chart without an account | no, a free account is required |
| No exact birth time | option "Unknown (Use sunrise)" → sunrise chart with solar houses |
| Interpretation | written by Henry Seltzer; "Not AI" |
| Names aspect and orb | yes, with applying/separating |
| Languages | 10 (App Store) |
| Apps | iOS · Android · macOS · Windows |
| Export | .chw · .qck · PDF · JPG · PNG · TIFF |
| Price | desktop $79 to $699 one-off · Pro $7.99/mo or $59.99/yr |
Date read: . Vendor site: astrograph.com. Sources: astrograph.com/timepassages/features · astrograph.com/timepassages/mobile · astrograph.com/birth-chart · support.astrograph.com (desktop manual) · apps.apple.com/us/app/timepassages-astrology/id488946918.
Cafe Astrology
| Property | Cafe Astrology |
|---|---|
| Ephemeris stated | not stated |
| House systems | 6 (Placidus default) |
| Chart without an account | yes, no e-mail needed |
| No exact birth time | checkbox "Unknown Time" → omits Moon, ASC, MC, Vertex, Part of Fortune and all house positions |
| Interpretation | written by the site's own author, Annie |
| Names aspect and orb | yes, with a worked example |
| Languages | not stated |
| Apps | not stated |
| Export | print / PDF |
| Price | free reports · paid reports $2.95 to $16.00 one-off |
Date read: . Vendor site: cafeastrology.com. Sources: cafeastrology.com/free-natal-chart-report.html · cafeastrology.com/articles/how-to-read-natal-chart-report.html · cafeastrology.com/shop/all-reports/ · astro.cafeastrology.com/natal.php.
Co-Star
| Property | Co-Star |
|---|---|
| Ephemeris stated | NASA JPL data; no library named |
| House systems | Porphyry, tropical |
| Chart without an account | no, phone or Apple account and SMS code; the web chart needs an e-mail |
| No exact birth time | not stated; "if you can find out what time you were born, we can do the rest" |
| Interpretation | human astrologers working with AI |
| Names aspect and orb | aspects listed with exact angles; orb not stated |
| Languages | 1 (English) |
| Apps | iOS · Android |
| Export | not stated |
| Price | free with à-la-carte purchases $2.99 to $11.99 · Pro-Star $8.99/mo |
Date read: . Vendor site: costarastrology.com. Sources: costarastrology.com/faq · costarastrology.com/natal-chart · apps.apple.com/us/app/co-star-personalized-astrology/id1264782561.
The Pattern
| Property | The Pattern |
|---|---|
| Ephemeris stated | not stated |
| House systems | Whole Sign |
| Chart without an account | web chart requires an e-mail; app not stated |
| No exact birth time | option "I don't know my birth time"; effect not stated |
| Interpretation | human-written insights; In-Depth runs on own infrastructure, not third-party AI |
| Names aspect and orb | square and opposition named by angle; orb not stated |
| Languages | 1 (English) |
| Apps | iOS · Android · web |
| Export | not stated; data on request by e-mail |
| Price | free · Go Deeper+ $14.99/mo · $83.99/yr |
Date read: . Vendor site: thepattern.com. Sources: thepattern.com/natalchart · thepattern.zendesk.com (help centre: house system, chart lines, In-Depth, data download) · apps.apple.com/us/app/the-pattern/id1071085727.
CHANI
| Property | CHANI |
|---|---|
| Ephemeris stated | not stated |
| House systems | Whole Sign, true nodes, Black Moon Lilith |
| Chart without an account | not stated |
| No exact birth time | no option; help says enter 12:00 noon, "your reading will be less precise" |
| Interpretation | states it is made by real astrologers, not AI |
| Names aspect and orb | aspects by whole sign, not by orb; transits by degree |
| Languages | 1 (English) |
| Apps | iOS · Android · web chart tool |
| Export | not stated |
| Price | free tier · $11.99/mo · $107.99/yr |
Date read: . Vendor site: chani.com. Sources: chaninicholas.zendesk.com (help centre: chart calculation, aspects, unknown birth time, app pricing, free vs premium) · apps.apple.com/us/app/chani-your-astrology-guide/id1532791252.
Astro Gold
| Property | Astro Gold |
|---|---|
| Ephemeris stated | Swiss Ephemeris; version not stated |
| House systems | 25+ |
| Chart without an account | not stated for iOS/Android; licence key on macOS/Windows |
| No exact birth time | not stated |
| Interpretation | built-in interpretations; author not stated |
| Names aspect and orb | yes, editable orbs, applying/separating separately |
| Languages | 1 (English) |
| Apps | iOS · Android · macOS · Windows |
| Export | .SFcht, interchangeable with Solar Fire · PDF |
| Price | iOS lifetime $69.99 · Android $49.99 · macOS $249.99 · Windows $249.99 |
Date read: . Vendor site: astrogold.io. Sources: astrogold.io/get-astro-gold/for-ios · astrogold.io/get-astro-gold/for-android · astrogold.io/get-astro-gold/for-macos · astrogold.io/get-astro-gold/for-windows · astrogold.io/help/faqs.
AstroMatrix
| Property | AstroMatrix |
|---|---|
| Ephemeris stated | Swiss Ephemeris; version not stated |
| House systems | 8 named |
| Chart without an account | not stated |
| No exact birth time | option "I don't know my birth time" → noon chart with approximate houses |
| Interpretation | assembled by the vendor's own algorithm from its text library |
| Names aspect and orb | major aspects and configurations named; orb not stated |
| Languages | 1 (English) |
| Apps | iOS · Android |
| Export | PDF (premium) |
| Price | free with ads · subscriptions $2.49/mo to $14.99/yr · lifetime $24.99 to $49.99 |
Date read: . Vendor site: astromatrix.org. Sources: astromatrix.org/tools/birth-chart · apps.apple.com/us/app/astromatrix-horoscopes/id1065636826.
Sanctuary
| Property | Sanctuary |
|---|---|
| Ephemeris stated | not stated |
| House systems | not stated |
| Chart without an account | not stated |
| No exact birth time | not stated |
| Interpretation | live 1:1 chat with a human astrologer, tarot reader or psychic |
| Names aspect and orb | not stated |
| Languages | 1 (English) |
| Apps | iOS · Android · web |
| Export | not stated |
| Price | free horoscopes and birth chart details · Sanctuary+ $14.99/mo, $49.99/yr · readings $4.99 to $49.99, per-minute $4.99 to $19.99 |
Date read: . Vendor site: sanctuaryworld.co. Sources: sanctuaryworld.co · sanctuaryworld.co/faq · shop.sanctuaryworld.co/pages/our-app · apps.apple.com/us/app/sanctuary-astrology/id1417411962.
AstroSage
| Property | AstroSage |
|---|---|
| Ephemeris stated | not stated |
| House systems | house systems not stated; ayanamsa selectable: Lahiri, Raman, KP, Sayan; North/South Indian chart styles; 16 divisional charts |
| Chart without an account | free kundli stated; account needed to save charts |
| No exact birth time | not stated |
| Interpretation | AI astrologer chat and live astrologers |
| Names aspect and orb | "Western aspects" listed; orb not stated |
| Languages | 18 (Google Play) |
| Apps | iOS · Android · web |
| Export | PDF download, e-mail, Bluetooth |
| Price | free kundli · paid plans and readings; amounts not stated |
Date read: . Vendor site: astrosage.com. Sources: astrosage.com/kundli · play.google.com/store/apps/details?id=com.ojassoft.astrosage.
Where this table is used
- Best AI natal chart tools: the table with the places where the other tools do more than we do.
- Best natal chart calculators: the same table read by situation, from house systems to an unknown birth time.
- LLM hub: the other pages written for machines as well as people, including the accuracy report behind our own row.