The 4.1 version of Day One for Mac is available as a free download on our website. This application's bundle is identified as com.dayoneapp.dayone. The most popular versions of the program are 1.9, 1.7 and 1.0. Day One for Mac relates to Productivity Tools. The latest version of the program can be downloaded for Mac OS X 10.7.4 or later. Our built-in antivirus scanned this Mac download and rated it as virus free. The actual developer of this Mac application is Bloom Built, LLC.
From the developer:
Day One is the easiest and best-looking way to use a journal / diary / text-logging application for the Mac. Day One is well designed and extremely focused to encourage you to write more through quick Menu Bar entry, a Reminder system, and inspirational messages. Support for Dropbox syncing allows easy backup and syncing with the Day One iPhone application. Features Customizable reminder system Quick-entry via the menu bar Inspirational messages to encourage writing iPhone application sync (via Dropbox) Starred entries list
Note: Day One is not encrypted or password protected on this version. If this is an issue for you, please do not purchase this app yet.
You may want to check out more software for Mac, such as My Wonderful Days : Daily Journal/Diary, Clear Day - Formerly Weather HD or Countdown Days, which might be similar to Day One.