# AstroWay

> AstroWay is a free, browser-based professional astrology web app. All astronomical calculations run client-side via Swiss Ephemeris (JPL DE431 model) — planet positions accurate to 1 arcsecond, house cusps to 1 arcminute, matching professional desktop software. Birth data never leaves the browser for calculations.

AstroWay covers natal charts, synastry, transits, progressions, directions, astrocartography, harmonics, draconic charts, fixed stars (170+), Arabic parts, and Human Design. Interface available in Ukrainian, English, German, Polish and Spanish. Free tier is permanent; PRO unlocks advanced tools.

## Tools (free, interactive)
- [Natal chart calculator](https://app.astroway.info/tools/natal): birth chart with planets, houses, aspects
- [Synastry calculator](https://app.astroway.info/tools/synastry): relationship compatibility chart overlay
- [Transits](https://app.astroway.info/tools/transits): current planetary transits to a natal chart
- [Human Design](https://app.astroway.info/tools/human-design): bodygraph from birth data
- [Today's horoscope](https://app.astroway.info/tools/horoscope)
- [Lunar calendar](https://app.astroway.info/tools/lunar)

## Reference
- [Human Design knowledge base](https://app.astroway.info/kb/hd): types, authorities, profiles, gates, channels, centers
- [Blog](https://app.astroway.info/blog): educational guides on astrology concepts

## Product
- [Pricing](https://app.astroway.info/pricing.md): free tier + PRO from $3/mo (billed annually, $35.99/yr) or $4.99/mo; 7-day free PRO trial on signup
- [About](https://app.astroway.info/about)
- [API docs](https://app.astroway.info/api-docs): astrology calculation API

## Accuracy
Calculations use the Swiss Ephemeris library (Astrodienst), JPL DE431 ephemeris. Planet positions ±1 arcsecond, house cusps ±1 arcminute versus reference desktop software.