Comparison · Updated June 2026

Astrologer vs Astro-Seek

Astro-Seek is a favorite among hobbyists for one reason: it calculates almost everything, for free, in the browser. Its weakness is the same as its strength — it is a calculator, dense and utilitarian, with little interpretation. Astrologer covers the same calculations with a modern interface and turns the output into plain-English meaning.

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Astro-Seek at a glance

A deep, free web calculator with an enormous range of chart types.

Maker	Petr Soural (independent developer, Czech Republic).
Platforms	Web, plus native iOS and Android apps.
Pricing	Free and ad-supported; no verified paid tier on the official site.
Calculation engine	Swiss Ephemeris.
Best for	Hobbyists who want a vast range of free calculations and do not mind a dense interface.

Feature comparison

Feature	Astrologer	Astro-Seek
Huge range of free chart types	Broad	Yes — exhaustive
Modern, interactive interface	Yes	Dense / utilitarian
Plain-English interpretation	Yes	Minimal
AI readings	Yes (Pro)	No
Synastry + composite	Yes	Yes
Astrocartography	Yes	Yes (maps)
Academy / learning path	Yes	Articles
Practitioner sessions + community	Yes	No
Calculation engine	Swiss Ephemeris	Swiss Ephemeris

Where Astro-Seek wins

An astonishing breadth of free calculators and chart types.
No paywall on the core calculations.
A trusted, long-running resource for technical lookups.

Where Astrologer wins

A modern, interactive chart instead of a static calculator output.
Plain-English interpretation and AI readings on top of the math.
An integrated learning path, practitioner sessions, and community.
A single, coherent workspace rather than a forms-and-tables site.

The bottom line

Astro-Seek is excellent if you just need the numbers and know how to read them. Astrologer suits people who want the same Swiss Ephemeris accuracy plus interpretation, a modern interface, and a way to learn — without losing the depth.

Try Astrologer free

Frequently asked questions

Is Astrologer free like Astro-Seek?

The core chart, synastry, transit, and ephemeris tools are free. Pro ($7.99/mo) adds AI readings and unlimited saved charts.

Do Astrologer and Astro-Seek use the same calculations?

Both use the Swiss Ephemeris, so planetary positions match. Astrologer adds interpretation and a more modern interface on top.