Bluetail 2.3.1 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 application's installer is commonly called bluetail.zip.
We recommend checking the downloaded files with any free antivirus. The following versions: 2.0 and 1.3 are the most frequently downloaded ones by the program users. The application belongs to Design & Photo Tools. This software for Mac OS X was originally designed by iconShots.
From the developer:
Bluetail is a beautifully designed, easy-to-use vector drawing application to help you create inspiring vector graphics. It has all tools, giving you power that let you draw any kind of shapes, technical illustrations, and beautiful art.
You may want to check out more software for Mac, such as EPSViewer, Artbox for Affinity-Templates or CDRViewer 3, which might be related to Bluetail.