Western Astrology
Your stars become your path.
Single-wheel, triple-wheel, and synastry charts calculated to the arcsecond. A horoscope app for beginners and astrologers alike.
Free to start. Natal, triple-wheel, and synastry from the first minute — no credit card.
Where people get stuck
- Can't find a solid horoscope tool that just works
- Created a chart but don't know how to read it
- Can't find a free triple wheel chart anywhere
- Want to check charts on mobile but everything is desktop-only
- Charts covered in ads and impossible to read
Features
Every chart, in one place
| Feature | Description | Plan |
|---|---|---|
| Natal chart | The single-wheel (一重円): positions, houses, aspect grid. | Free |
| Triple-wheel | Natal, progressed, and transit rings in one chart (三重円). | Free |
| Synastry | Cross-aspects between two charts. | Free |
| Reading guide | Hover any placement for its meaning. Readable from day one. | Free |
| Ephemeris & void times | Monthly ephemeris, ingresses, void-of-course Moon. | Free |
| Birth data manager | Timezone-aware place search. Reorder and bulk delete. | Free |
| Composite | A midpoint chart for two people. | Hoshigatari |
| Solar & lunar returns | Birthday and monthly return charts. | Hoshigatari |
| Solar arc, draconic, harmonic | Advanced directed and harmonic charts. | Hoshigatari |
| Astro Map | Planetary lines on a world map. | Hoshigatari |
| Synastry score table | The numbers behind a synastry reading. | Hoshigatari |
| Memos & snapshots | Write on a chart and save its exact state. | Hoshimichibiki |
| AI chat access (MCP) | Work with your charts from an AI client. | Hoshimichibiki |
| Reports | A full reading of who you are, in everyday words. | One-time |
There are reports too
Not ready to read the chart yourself?
Enter a birth date, time, and place, and a full reading arrives in everyday words. No astrology vocabulary required.
See the reports →Why Hoshidou
Why Hoshidou
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Arcsecond accuracy
Charts calculated to the arcsecond.
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Charts from basics to advanced
Natal, triple-wheel, and synastry, plus composite, solar return and the other advanced charts, through to the Astro Map.
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Privacy-first
No tracking cookies. Your birth data stays yours.
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Free to start
Chart features begin on the free Hoshiyomi plan. Unlimited data and advanced charts open up at ¥550 a month.
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Beginner to professional
Hover-over reading guides make charts accessible to beginners. Advanced users can connect an AI client directly via MCP.
How It Works
Create Account
Sign up with your email in seconds.
Enter Birth Data
Add birth details with timezone-aware location search.
View Charts
Cast the natal, triple-wheel, and synastry charts instantly.
FAQ
Is it free?
The core charts — natal (一重円), triple-wheel (三重円), and synastry — are free for good. Advanced charts and the Astro Map start with Hoshigatari at ¥550/month. While the beta runs, everything is free to try.
How accurate are the charts?
Charts are calculated to the arcsecond - the same precision used by professional astrology software.
What chart types are available?
Natal, triple-wheel, synastry, composite, solar return, lunar return, solar arc, draconic, harmonic, and the Astro Map. Monthly ephemeris and void-of-course times are included.
Is my data safe?
We use session cookies only - no tracking. Your birth data is stored securely and can be deleted at any time from your account settings.
Do I need to know astrology?
No prior knowledge is required. The app provides clear chart displays that both beginners and experienced astrologers can use.
Start walking your path.
Read your chart, starting today.