Topics: An Islamic subject tree that includes 14 main topics branched into 85 sub-topics, which are branched into lower levels to cover the main Islamic topics of Quran, Hadith and Jurisprudence. Indices: Indices of Quranic verses and Hadiths with full referencing and integration with relevant locations in the program. Azkar (Sayings for the Remembrance of Allah): As mentioned in the book of hadith of "Riyad-us-Salihin", presented in a tree format, to facilitate its browsing and search.