MarsEdit 4 also brings a new sales approach that aims to unify the
trial, purchase, and upgrade experience between the Mac App Store
and direct-licensed versions of the app. The app is free to
download and can be used full-featured for a 14 day trial period.
After the trial expires, all features of the app continue to work
except for actions that update published content on the web. This
ensures that all of MarsEdit’s powerful offline features,
including download/archiving of posts, can be used in perpetuity