footnote is a very light and neat Notebook App for elementary OS. Developed by Allen Lowe
License: Open Source
Together lets you keep everything in one place. Text, documents, images, movies, sounds, web pages and bookmarks can all be dragged to Together for safe keeping, tagged, previewed, collected together in different ways, and found again instantly. Developed by Reinvented Software
License: Commercial
Footnote is designed for ease of use, focusing on document editing and collaboration with multiple file format support, while Together emphasizes real-time collaboration and task management with a more complex feature set.