Docollab is described as 'collaborative workspace for teams. With Docollab you have a single place where team members organize, view and edit files, and assign tasks and track their progress' and is an website in the Office & Productivity category. There are more than 100 alternatives to Docollab, not only websites but also apps for a variety of platforms, including Windows, Mac, Android and iPhone. The best alternative is LibreOffice, which is both free and Open Source. Other great sites and apps similar to Docollab are Joplin (Free Personal, Open Source), Google Drive (Freemium), Google Keep (Free) and Trello (Freemium).
MixNote is a mobile note taking app, like a memo pad or notepad. Take note of every deserved thing, with text, ToDo, voice and picture. You can take notes, write memos, create to-do list, record voice and add pictures in MixNote. Make your notes more varied and interesting.
Rebel aims to provide you a distraction-free note taking experience. Focus more on writing and less on formatting and saving. As you write your note, Rebel will format it based on your markdown syntax.