Snapfax 418.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app was originally designed by Extracomm Inc. We recommend checking the downloaded files with any free antivirus. The application lies within Productivity Tools, more precisely Office Tools.
From the developer:
Snapfax turns your Mac into a fax machine. You can fax your document anytime anywhere. You can send faxes to 58 countries in the world. You can fax PDF documents or screen captures. You are informed about the estimated time of fax completion, and you receive a notification when the fax job has been completed.
You may want to check out more Mac applications, such as PDFMergeThing, Apimac Clean Text or Gordon, which might be related to Snapfax.