The "فضيلة الشيخ د.صالح العصيمي" app is a comprehensive collection of lessons and programs by Sheikh Saleh bin Abdullah bin Hamad Al-Osaimi, a teacher at the Holy Mosques. The app features an easy and flexible interface to facilitate access to the Sheikh's lessons and programs.

With a fast and accurate search engine, users can quickly find specific lessons, sermons, admonitions, and programs. The app also organizes and categorizes audio and visual scientific materials.

In addition to scientific lectures, Friday sermons, speeches, and scientific meetings, the app provides materials on "Fiqh Al-Munasabat" (Jurisprudence of Occasions) such as Hajj, the ten days of Dhul-Hijjah, Ashura, Ramadan, and Eid al-Fitr.

The app includes a dedicated section for the Sheikh's scientific benefits from his lessons, as well as a separate section for translated visual clips. It also offers a service called "Taqreeb Al-Ilm" (Knowledge Approximation), indexing the Sheikh's explanations of various scientific texts on different subjects and topics to facilitate learning for students.

Users can take notes and save their comments for future reference, and a "Favorites" feature allows them to bookmark content for easy access later.