AstroStarCheck

AstroStarCheck is a multilingual astrology workbench that computes your full natal chart in the browser with Swiss Ephemeris, then reads daily, weekly, monthly and yearly trends through transits, secondary progressions and Firdaria periods. It includes synastry compatibility, historical backtesting and live chat with an AI astrologer. All calculations run locally — birth data never leaves your device, no sign-up required, available in 11 languages.