Column Calendar and Tag Memo is a straightforward vertical calendar application designed for easy reading and practical use. It offers a memo function for each day, allowing users to jot down notes effortlessly. The app also features sticky note-like stamps that can be added as marks for different dates, making it convenient for tasks like shift management. With over 30 types of sticky note stamps, users can choose from cute to basic designs to suit their preferences.

Furthermore, users can enjoy the event function for setting reminders and period ranges, along with the flexibility of switching between three calendars for various purposes. The app supports backup and restore functionality, offers a wide range of theme colors, and is compatible with iOS14 widgets, providing a customizable and efficient calendar experience.