The application "Translation of Durusul Fiqhiyyah" by Sayyid Abdul Rahman bin Saqaf bin Hussein Al-Saqaf is a very valuable resource for anyone who wants to deepen the knowledge of fiqh. This text provides an in-depth understanding of the principles of fiqh and their application in everyday life, as well as explaining various legal problems faced by Muslims. With this application, users can easily access clear and concise translations, thereby enriching their knowledge of Islamic teachings. This application is equipped with very useful features, including a table of contents that makes it easy to navigate to certain chapters or sub-chapters, a bookmark feature to save important pages, as well as a text search feature that allows users to quickly find specific information. Additionally, users can adjust the text size for comfortable reading, and choose between dark and light modes according to their preferences. With all these features, the "Translate Durulus Fiqhiyyah" application is an ideal tool for every Muslim who wants to deepen their understanding of fiqh in an interactive and fun way.