Sejarah Agama Islam Lengkap is an Android app developed by Hijrah Dev that provides a comprehensive overview of Islamic history. The app covers the development of Muslims around the world, the age of Islamic history during the time of Rasulullah SAW, the history of Islam's entry and spread in the archipelago, and a list of companions of the Prophet along with their level. The app also includes information on Khulafah Rasydin, 20 Shahabiyah Rasulullah SAW, 10 companions of the Prophet guaranteed to enter heaven, figures spreading Islam in Indonesia, the history of Wali Songo, and the legend of the 7 oldest mosques in the world and 10 oldest mosques in Indonesia.

In addition to the historical information, the app also provides a complete book of remembrance along with text, the book Juz Am'ma, and a guide to learning the science of Tajwid. The app also includes complete mp3 recitations of Surat Yasin offline and a guide to prayer and dhikr. The app is free and offline, making it a convenient reference tool for those seeking to deepen their understanding of Islamic history and practice.