Mac App Store is the simplest way to find and download apps for your Mac.To download MarsEdit - the blog editor for WordPress, Tumblr, Blogger and more. from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More. Description ★ The #1 Desktop Blog Editor for the Mac! ★ The best way to write, preview, and publish your blog. ✔ Works with WordPress, Blogger, Tumblr, Squarespace 5, Ty