The 꼼꼼달력메모 app is a free Android application developed by JuShine. It falls under the category of Business & Productivity. With this app, users can easily view calendars from different countries and make memos.

The main features of the app include access to holiday and commemoration dates from 32 different countries, the ability to create simple memos with category and color customization, a calendar widget for quick input, app access security with a password, and backup and restore functionality.

Please note that the app requires certain permissions, such as storage access for backup and restore management. However, it does not collect or use any personal information, ensuring a safe user experience without the need for personal data input.