Книга Единобожия is an educational book for Muslims that provides a summary of the principles of Tawheed (Oneness of Allah) according to the Quran and Sunnah. This book is authored by Sheikhul-Islam Muhammad bin Abdul Wahhab. The app is developed by IslamBooks and is available for free on the Android platform.

The book is an excellent resource for Muslims who want to learn about the concept of Tawheed, which is the foundation of Islamic belief. The app provides a detailed explanation of the verses of the Quran and Hadith that relate to Tawheed. The book is written in Arabic, and the app provides an easy-to-use interface for reading the book on a mobile device. Overall, Книга Единобожия is a valuable resource for Muslims who want to deepen their understanding of Tawheed.