Dropshelf 1.3.3 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is Pilotmoon Software.
The most popular versions of the software are 1.2 and 1.0. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The bundle identifier for this app is com.pilotmoon.Dropshelf. This app works fine with Mac OS X 10.8 or later.
From the developer:
Dropshelf makes dragging and dropping easier, by providing a resting place for draggable items. Just drag an item to any edge of the screen, and Dropshelf slides out. Keep files, images, URLs and text clippings handy until you are ready to drag them out to other apps.
What's new in this version:
Dropshelf is now fully compatible with with OS X 10.11 El Capitan.