When comparing Logseq vs Zettlr, the Slant community recommends Logseq for most people. In the question“What is the best cross-platform note-taking app?” Logseq is ranked 22nd while Zettlr is ranked 49th. The most important reason people chose Logseq is:
Logseq is a privacy-first tool for thought.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Privacy-first
Logseq is a privacy-first tool for thought.
Pro Networked notes
Similar to Roam's technique of letting the notes flow with links to each other.
Pro Local-first software
Every topic is its own flat file. Nothing is better than keeping your data in the file system with an option of git source control or online backup.
https://www.inkandswitch.com/local-first/
Pro Daily journal is capture on Steriods
The daily journal feature allows you to quickly capture disparate topics under today's date and by way of tags make things organized and findable from any topic page.
Pro Open source
Logseq is opensource.
Pro Structured data over willy-nilly formatting
Lots of apps are too graphically flexible in how they allow content to be entered, placed, and formatted. They act like Word when what you want when authoring content is Markdown. Content and semantic structure, not graphical frills.
Pro Org syntax
Logseq support Emacs Org syntax out of the box.
Pro Focuses on writers
While many Markdown editors don't offer specific support for a certain type of workflow, or offer features for scientific workflows only, Zettlr offers features that help the writing process of journalists or researchers in the arts and humanities. It's a lot more text-focused than most editors.
Pro Citation support
While it supports a diverse range of syntax (chart, easy image insert, etc.) found in other editors, the great citation support made it possible to write real articles. Citation from Zotero and Mendeley can be inserted easily which is a huge plus.
Pro Almost perfect
This is the best option, still not perfect, there are some bugs like creating / editing tables and resizing images, but the PROS destroy the CONS, easy quotes, WYSIWYM , attachments tab (supports attaching and opening links to any file), table of contents, TAGs, easy hyperlink between files (same as citations), export to many formats (like Word, HTML5, PDF)...
Pro Renders math in-place through KaTex
Cons
Con Keyboard-driven editing/navigating is descent but average
It is only because I was a long-time Checkvist user that I say this. Checkvist has keyboard-driven controls which are in a league of their own.
Con Still in Alpha
Logseq is still in Alpha and is under heavy development.
Con Obtrusive, like someone WITH CAPS LOCK ON
Too loud, too much going on, and definitely an in-your-face sort of feeling.