Sagelon vs Astro-Seek
Astro-Seek has the deepest free astrology toolkit on the internet. We use the same Swiss Ephemeris engine for natal charts. Where we differ: Sagelon adds three more personality systems and measures where they agree.
What Astro-Seek Does Well
Astro-Seek is the go-to site for serious astrology. It offers transit charts, synastry, composite charts, asteroid placements, solar returns, and more advanced features than most paid apps provide. Everything is powered by Swiss Ephemeris, the same engine professional astrologers use. No account is needed. No paywall. The site is ad-supported and has been a reliable free resource for years. If you want to calculate anything astrology-related, chances are Astro-Seek has it.
What Makes Sagelon Different
Sagelon does not try to out-feature Astro-Seek on astrology. We use the same Swiss Ephemeris engine, but our natal chart is one piece of a larger picture. Sagelon also calculates your Pythagorean numerology (Life Path, Expression, and Soul Urge numbers), your Chinese BaZi Four Pillars with Day Master analysis, and your tarot birth cards. Then we measure convergence: the degree to which these four independent systems agree about your personality traits.
Side-by-Side Comparison
Who Is Astro-Seek Best For?
Anyone who wants the most detailed free astrology tools available. If you are tracking transits, comparing synastry charts, looking up asteroid positions, or running solar arc directions, Astro-Seek is hard to beat. It is the reference tool for astrology practitioners and students who need precision and breadth within the Western astrology tradition.
Who Is Sagelon Best For?
People who want to see beyond a single system. If you already know your natal chart and want to find out whether numerology, BaZi, and tarot birth cards agree with what astrology says about you, Sagelon is built for that question. We are less deep on astrology features than Astro-Seek, but we are the only platform that measures cross-system agreement across four independent personality frameworks.
The Convergence Advantage
Astro-Seek gives you the most complete picture that astrology alone can provide. Sagelon asks a different question: when four systems that were developed independently by different civilizations all describe the same personality trait, what does that mean? When your Life Path number, your Sun sign, your BaZi Day Master, and your tarot birth card all point to the same pattern, that cross-system agreement carries a weight that no single framework can match on its own.
Your personality convergence is one lens.
What happens when your Western chart, Chinese astrology, numerology, and tarot birth cards all point to the same pattern? That's convergence , and it reveals things no single system can see alone.
See Your Full Convergence SnapshotFree. 30 seconds. Four systems cross-referenced.
Frequently Asked Questions
Is Sagelon better than Astro-Seek?
They solve different problems. Astro-Seek is better if you want the deepest possible free astrology toolkit: transits, synastry, asteroid charts, and more. Sagelon is better if you want to see how astrology lines up with three other personality systems. If you care about transit charts and synastry, Astro-Seek is the stronger choice today. If you want cross-system convergence analysis, Sagelon is the only option.
Does Sagelon use Swiss Ephemeris like Astro-Seek?
Yes. Both Sagelon and Astro-Seek use the Swiss Ephemeris for natal chart calculations. You will get the same planetary positions from either platform. The difference is what each site does with that data: Astro-Seek gives you the most detailed astrology output available for free, while Sagelon runs your chart alongside numerology, BaZi, and tarot birth cards to find where they agree.
Can I use both Sagelon and Astro-Seek?
Yes, and many people do. Astro-Seek is the best place to explore your astrology in depth: transits, progressions, asteroid placements, synastry overlays. Sagelon adds three more personality systems on top of your natal chart and measures convergence across all four. They complement each other well.