Download of Packrat - 37signals Backpack Offline Client 2.2 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular version of the software is 2.2.
This software for Mac OS X was originally developed by Infinitenil. The application is included in Productivity Tools. The bundle id for Packrat - 37signals Backpack Offline Client for Mac is com.infinitenil.packrat.mac. The software is also known as "Packrat". Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Packrat is a desktop client for 37signals Backpack Web application. You can download your Backpack data and use it offline. View it, make changes, create new pages, etc. When you're online PackRat automatically sends your changes up to Backpack keeping everything in sync.
You may want to check out more software for Mac, such as Everport - for moving 37signals' Backpack data to Evernote, JIRA Client or Dynu IP Update Client, which might be similar to Packrat - 37signals Backpack Offline Client.
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