Publish to WordPress, Tumblr, Blogger, Scriptogram blogs and Evernote notebooks directly from Byword. Requires a one-time in-app purchase.
Price: $10. OSX and iOS. No trial, only available at Apple App Stores. Supports Markdown, not sure about HTML.
You can keep your world private or, like so many do, share your thoughts and opinions or your entire life. Your MacJournal entries can be published to any of the popular blogging services like Blogger, WordPress, LiveJournal, Tumblr and more.
Price: $40. OSX only. Has a trial version. Tested in my localhost server and works ok. Can create new posts, or download all existing posts and edit/update them. Doesn't seem to support HTML.
myWPEdit is an easy-to-use weblog editor focusing on the most important functions for blogger with easy to use features and a clean user interface. Why should you hinder yourself by using the slow and hard-to-use web interface WordPress comes with, if you could do it with style and comfort of a real Mac application.
Price: $10. OSX only. No trial, only available at Apple App Store. Supports Markdown and HTML.