Downloading BackTrack for Safari 2.5.3 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. 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 program lies within Education Tools, more precisely Reference.
From the developer:
Problem: We often come across images on the web devoid of any context. We would like to know the source of a picture, learn more about the subject or the circumstances in which the photo was created.
Solution: BackTrack for Safari harnesses the power of multiple search engines to find out where an image shows up on the web and possible keywords which may help you discover more about it.
You may want to check out more Mac applications, such as Safari FIDO U2F, Youda Safari or Jigsaw Safari, which might be related to BackTrack for Safari.
Device Assistants
Science Tools