Downloading XfrogTUNE 1.0 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The common filename for the program's installer is xfrogTUNE.exe.
The following versions: 3.5 and 1.0 are the most frequently downloaded ones by the program users. This PC software works fine with 32-bit versions of Windows XP/7/8.
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. This software is a product of Greenworks. XfrogTUNE lies within Photo & Graphics Tools, more precisely 3D Design.
From the developer:
XfrogTune works with any Xfrog model that is constructed with tree and leaf components, and allows the user to change the polygon complexity while intelligently retaining the overall look of the model, by employing specific visual perception tricks, and by dropping polygons that are non-critical such as secondary and tertiary levels of branching which are usually hidden, dropping leaves in a random patterns and enlarging remaining leaves when the model is in the distance to keep exact overall shape and the relationship of foliage to branches intact.
You may want to check out more software, such as Win4D Advance or FRED Optical Engineering Software, which might be similar to XfrogTUNE.