When comparing StackEditPro vs Texts, the Slant community recommends StackEditPro for most people. In the question“What are the best open source Markdown editors for UNIX-like systems?” StackEditPro is ranked 21st while Texts is ranked 29th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Synchronize multiple devices
Pro Publish to many web services
Pro Free
Pro View table of contents and file tree at the same time
Pro Add links between documents
Pro Extract sections to new documents
Pro Rename/Renumber multiple files
Pro Text search all workspace files
Pro Synchronize multiple workspaces
Pro Supports multiple Markdown dialects
Unfortunately, this is a global setting for save (it can open any dialect)
Pro Immediate Markdown rendering and preview
Texts immediately renders the formatted Markdown as you are typing it inside the text box. It's quite similar to a WYSIWYG editor.
Pro Imports and exports many formats
HTML, Word, TeX, PDF, ePUB, OPML.
Pro Works on Mac OS X and Windows
Cons
Con Overwrites standard Markdown
Editing a preexisting Markdown document overwrites standard markup in it (for example, interpreting headings marked with leading "#"s and rewriting them with a trailing underscore line), adds extra blank lines between all paragraphs, and adds extra spaces at the head of unordered-list items.
Con Spell checking is not activated by default
There's a built-in spell checker which is not activated by default and is quite hidden.
Con Limited choice of built-in themes
You can download the CSS for these themes and create your own, but would be nice to have more flavors (e.g. GitHub)
Con No word count in older versions
Word count is present in Texts 0.21, at least.