Ruznama is a free-to-use Android app developed by SMT Co. that offers a comprehensive set of features for individuals who want to stay organized and updated with important events and days. This app is primarily designed for users residing in Saudi Arabia, but it can be used by anyone who wants to stay informed about international events.

The app allows users to schedule and organize personal tasks and add them to the Hijri/Gregorian calendar. Users can also view all important international Hijri/Gregorian days and set reminders for them. Ruznama also provides information about important events in Saudi Arabia. Additionally, the app offers services like date conversion from Hijri to Gregorian and age calculation. Users can also access Islamic prayer times through the app.