The 3.69 version of drawtree for Mac is provided as a free download on our website. The following version: 3.6 is the most frequently downloaded one by the program users. Our antivirus analysis shows that this Mac download is malware free. This free Mac app is an intellectual property of Joseph Felsenstein. The bundle id for drawtree for Mac is edu.washington.gs.evolution. The program lies within Design & Photo Tools, more precisely General.
From the developer:
DRAWTREE interactively plots an unrooted tree diagram, with many options including orientation of tree and branches, label sizes and angles, margin sizes. Particularly if you can use your computer screen to preview the plot, you can very effectively adjust the details of the plotting to get just the kind of plot you want.
You may want to check out more Mac applications, such as Smith Chart for Mac, PDF Comparator or EaSynth ForeUI, which might be similar to drawtree.