Agenda vs nb

Agenda is a date-focused note-taking application for macOS, iOS, and iPadOS developed by Momenta B.V. It organizes notes along a timeline linked to calendar events, combining note-taking with scheduling and task management. The app syncs via iCloud or Dropbox and supports rich text, attachments, tags, and collaboration.

nb is Command-line note-taking, bookmarking, and knowledge base tool with plain-text storage and Git sync.. It is available under a free model. This tool falls under the note taking category.