Stunning Note-Taking App: UI Design and Functionality Perfected

This note-taking app boasts not only strong encryption but also a stunning user interface: intuitive, responsive, and customizable. Features like a folder tree in the left pane, a rich text editor (truly rich and classic), and an automatically generated clickable table of contents (showable/hidable via a hamburger menu, perfect for mobile) showcase its elegant design. A simple calendar, colorful tags, and Monday-starting weeks further enhance the experience. Support for other file types looks even more promising!