Massaels Ayatollah Sistani FR is an Android application developed by Mamode F. NASSOR. It is a comprehensive guide to Islamic jurisprudence, specifically designed for Shia Muslims. The app provides an abridged version of the main religious decrees of contemporary Muslim jurists, with a special focus on the Ayatollah Sayyed Ali Al-Sistâni.

The app is essentially a translated version of the guidebook "Tawzioul Massael" by Marhoum Abbas Ahmad Al-Bostani. The book has been published with the permission of the author's heirs and is available in both English and French. It covers a wide range of topics, including prayers, fasting, alms-giving, pilgrimage, and other important religious practices. The app is a valuable resource for anyone seeking to deepen their understanding of Islamic jurisprudence, and particularly for Shia Muslims who follow the teachings of Ayatollah Sayyed Ali Al-Sistâni.