Giang Phong Thủy is a free Android application that provides a wealth of knowledge on feng shui. It offers a variety of features, including a lunar calendar, a compass to determine direction and auspiciousness, and general feng shui knowledge on house orientation. The app also provides information on how to avoid negative energy and how to transform it into positive energy.

Additionally, Giang Phong Thủy offers a detailed explanation of the meaning and usage of feng shui items, as well as the option to purchase these items directly through the app. The app also features a live chat function, allowing users to consult with experienced feng shui practitioners.

Overall, Giang Phong Thủy is a comprehensive guide to feng shui that draws on ancient knowledge and the theory of yin and yang. Whether you're a beginner or an experienced practitioner, this app is a valuable resource for incorporating feng shui into your daily life.