Büyük Günahlar, an application developed by Hak Yayınları, is a free educational reference program available on the Android platform. The program is categorized under books and aims to provide an informative guide about halal and haram.

The program is a translation of the original Arabic book written by Hafız İmam Zehebi and has been translated by Muhyiddin Misto. The translator has done a commendable job in providing an accurate and smooth translation of the book while also correcting the misconceptions about it. The program is an excellent resource for those who want to learn about the Islamic laws and regulations regarding halal and haram in a clear and concise manner. However, it should be noted that the application does not offer any interactive features, and users will have to read the text to gain knowledge.