Tövhid - Allahın qulları üzəri is a free Android application developed by Selefler for education and reference purposes. The program is a book that explores the teachings of Islam and provides guidance on how to become a better Muslim. The book begins with an introduction about the importance of fearing Allah and being a good Muslim. It then goes on to discuss various topics such as the oneness of Allah, the role of Prophet Muhammad, and the importance of following the right path. The book is written in Azerbaijani and is targeted towards Muslim readers. The app is easy to navigate and provides a simple interface for reading the book. Overall, Tövhid - Allahın qulları üzəri is a useful app for those looking to deepen their understanding of Islam and become better Muslims.