Downloading Measurist 2.3 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The program is categorized as Education Tools. The actual developer of this Mac application is Takuto Nakamura. 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.
From the developer:
Measurist is an application that can display a ruler or a protractor on the screen. The interval of the ruler is 1 mm, 0.1 inch, or 5 pixel. However, the scale intervals on some displays may not be as accurate as desired, but you can adjust it manually.
You may want to check out more software for Mac, such as sciatrope, Analytics to Earth or TreeView X, which might be similar to Measurist.