RedNotebook is a free and open-source journaling software application designed to help users easily keep track of their daily activities. It provides a simple and intuitive interface to enable users to quickly and easily document their thoughts, ideas, and experiences. The app allows users to store and organize entries by date, tag them, and categorize them for easy retrieval later. It also offers a calendar view for quickly viewing past entries. Additionally, RedNotebook allows users to export their entries to HTML and PDF files for sharing with others. Finally, the app also has basic encryption capabilities, enabling users to keep their private journal entries safe.
It is a great application, but it does not incorporate a calendar.