The "عالم الجن - كما لم تعرفه من قب" app, developed by als7arif2mustafa, is a free education and reference app available on Android. This app offers a comprehensive insight into the world of genies, one of the vastest worlds, with numbers exceeding humans, in various shapes, sizes, and characters. The app provides information on their food, sleep, and religions, along with their various types such as Saala, Shaq, Tantl, Afreen, and Umm Al-Sibyan.

The app answers several questions such as how genies were created, whether they are created from fire, what they look like, and whether people have seen them. It also sheds light on the religions and sects of genies. However, the app only provides basic information and does not contain references to any stories or personal experiences.

Overall, "عالم الجن - كما لم تعرفه من قب" is a well-organized and informative app for those interested in the world of genies. It is a great source of information for those who want to learn more about their beliefs and practices.