The 0.2 version of MacCAN Monitor for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
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 application is included in Communication Tools. This free Mac app was originally produced by UV Software.
From the developer:
The MacCAN Monitor App is a demo program to show the functionally of the PCBUSB library. The program displays received CAN messages in a table view; its size is limited to 1024 rows. Furthermore it is possible to send single standard CAN messages with 0 to 8 data bytes. The PCAN-USB interface number is taken from the IO registry.
You may want to check out more Mac applications, such as Hardware Monitor Remote, File Monitor or Multimon - Multiple menu bars and monitor management, which might be similar to MacCAN Monitor.