While primarily a Vedic astrology tool, J-Hora is exceptionally powerful for horary (Prashna). It is free to download and includes extensive configuration options for house systems and planetary strengths.
Widely regarded by the community as one of the most versatile freeware programs, Planetdance can handle almost any calculation an astrologer needs, from traditional horary to modern techniques.
A specialized free tool for followers of the Krishnamurti Paddhati (KP) system. It is designed specifically for horary (Prashna) queries and offers precise calculations and a user-friendly setup for Windows users.
When choosing a software, ensure it supports these specific horary needs: