My Day Planner: Smart Calendar is a productivity application designed for iPhone users to help manage their daily tasks and schedules effectively. The app allows users to easily create and edit tasks by entering a title, selecting an icon and color, and setting the time and duration. It also supports recurring tasks for activities that need to be repeated regularly, making it a versatile tool for everyday planning.

The application features a vertical timeline for visualizing daily routines and a monthly calendar view for tracking progress. Users can customize their experience by choosing different icons and colors for tasks, as well as toggling between light and dark themes. Additionally, My Day Planner offers notification settings to remind users of important tasks, ultimately enhancing productivity and time management.