The شرح الممتع على زاد المستقنع (Enjoyable Explanation of Zad al-Mustaqni) is a book by Sheikh Muhammad bin Salih Al-Uthaymeen, providing a detailed explanation of the book Zad al-Mustaqni. The book is now available as an Android app developed by So Smart Apps, which offers a range of features for users to enhance their reading experience.

The app includes a comprehensive search function that allows users to search the entire book or individual sections, as well as the ability to change the font size, color, and style. Additionally, users can choose from hundreds of background colors and images to make reading more comfortable. The app also includes various menus that provide easy access to different sections of the book, including a favorite section, notes, and bookmarks. With its user-friendly interface, the app is an excellent resource for anyone looking to understand the contents of Zad al-Mustaqni.