Häsiýetler hakynda kitap by Turkiston is a free Android book app that discusses the human body and its functions. The app is in the Education & Reference category under Books, and its content is in the Turkmen language. The app is a great resource for those who want to learn more about the human body and its workings. The app's content is based on the holy scripture, which states that humans are created by God and their bodies are a gift from Him.

The app provides a detailed explanation of human anatomy, physiology, and the soul. It explains that the human body is a complex machine that works in harmony with the soul. The app is easy to navigate, and the content is presented in a clear and concise manner, making it accessible to everyone who wants to learn more about the human body.