Draw the sky,then read it yourself.
The HOSHIDOU app calculates the sky you were born under and the sky right now, to the arcsecond, and draws each one as a wheel. You read it yourself, checking what each symbol means as you go.
The basic charts are free, no card needed.
SunLibra 2°24′
Your core sense of self, and where your will points.
MoonPisces 17°02′
How your feelings move, and what you need to feel at home.
MercuryLibra 23°02′
How you think, take in information and put it into words.
VenusScorpio 7°21′
What you love, what you find beautiful and what you value.
MarsCancer 28°26′
How you take action and go after what you want.
JupiterLeo 18°35′
Where growth and opportunity come most naturally.
SaturnAries 12°01′
Where patience and responsibility build lasting skill over time.
UranusGemini 5°36′
Sudden change, and the urge to break out of set structures.
NeptuneAries 3°01′
Imagination and intuition, where dream and reality blur.
PlutoAquarius 3°10′
Deep change: what ends, and what is rebuilt after it.
What you can do in the app
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Single Wheel
See your own skyOn every plan
Enter your birth details (date, time and place) and the Single Wheel (一重円) draws the sky at the moment you were born: the planets, signs and houses, and the angles between the planets (aspects), all on one chart.
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Sample: a natal chart with the sky on Sep 25, 20:00 JST over it, two rings. The app's Triple Wheel adds the progressed ring.
Triple Wheel
Lay today's sky over yoursOn every plan
The Triple Wheel (三重円) puts your natal chart, progressions and transits (for now, or any date you pick) in three rings, so you can see where today's sky touches the sky you were born under.
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Synastry
Lay two skies togetherOn every plan
Two natal charts on one wheel, showing the angles between one person's planets and the other's. It gives you a way into a relationship, whether with family, a friend or a colleague.
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Sample: the 72 hours from Sep 25, 20:00 JST. The Moon's void-of-course times are in the app's monthly table.
Ephemeris and void times
Check today's skyOn every plan
A table for each month: which sign and degree each planet is in, when it changes sign, and when a retrograde begins. The Moon's void-of-course periods are listed too.
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Tooltips
Read a symbol's meaning on the spotOn every plan
Hover over or tap a planet or an aspect on the chart and a tooltip tells you what it means. You choose how much it says, from beginner to advanced.
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Connect AI (MCP)
Read with an AIOn Hoshimichibiki
Connect HOSHIDOU to Claude or ChatGPT and the AI reads your natal chart and transits, so you can talk the chart through together. HOSHIDOU does the calculation; the AI you connect does the reading.
Three plans
The basic charts stay free on the Hoshiyomi plan.
- Hoshiyomi (free) The Single Wheel, Triple Wheel and Synastry, the ephemeris and void times, and tooltips. Save up to 5 sets of birth details.
- Hoshigatari (¥550 a month) Everything in Hoshiyomi, plus advanced charts such as composite, solar return and solar arc, the Astro Map and the synastry score table. Save as many birth details as you like.
- Hoshimichibiki (¥1,650 a month) Everything in Hoshigatari, plus memos on your charts, saved charts and Connect AI.
Learning to use it, and to read
The HOSHIDOU Map covers how to use the app and how to read a chart, from the first-time tour and entering your birth details to the basics of planets, signs, houses and aspects.