Our website provides a free download of Neck Diagrams 1.9 for Mac. Neck Diagrams for Mac lies within Design & Photo Tools, more precisely Viewers & Editors. This Mac application is an intellectual property of Digital Software Technology Ltd.
From the developer:
Neck Diagrams takes the pain out of creating your own fretboard diagrams and chord charts!
You may want to check out more software for Mac, such as Head and Neck Anatomy 2, ClickCharts Diagram & Flowchart Software or draw.io Diagrams, which might be related to Neck Diagrams.