The فتاوى الشيخ ابن عثيمين app is an educational reference application developed by Arabia-IT. It contains three of the most famous series of fatwas by the renowned scholar Sheikh Mohammed bin Saleh Al-Othaimeen, may Allah have mercy on him.

The first series is "Noor Ala Al-Darb," a popular radio program that aired for twenty years on the Radio of the Holy Quran in Saudi Arabia. It includes approximately 6,950 fatwas.

The second series is the monthly meetings that Sheikh Al-Othaimeen held in the mosque in Unaizah. These meetings took place on the third Saturday of every month after the evening prayer. They covered the interpretation of Quranic verses and addressed various topics of interest to the attendees. There were a total of 77 meetings.

The third series is the open-door meetings that Sheikh Al-Othaimeen held in his house in Unaizah every Thursday morning. These meetings were open to all members of the community and lasted from the month of Sha'ban in 1412 AH to the month of Safar in 1421 AH. There were a total of 236 meetings.

The app offers several features, including the availability of audio recordings alongside the written fatwas to maximize the benefit. It also provides easy search options and allows users to access fatwas through thematic or chronological order. Additionally, users can share fatwas with others while maintaining the reference within the app.