Strukt 1.8.3 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software belongs to Productivity Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this software for Mac is Ken Harris.
From the developer:
Process or analyze any tabular data you have, any way you want, and see the results right away. No need to load it into a database. Just put some operations together, and see the result right away.
You may want to check out more Mac applications, such as BigCloud Archives or Everport - for moving 37signals' Backpack data to Evernote, which might be related to Strukt.