All of the features of the desktop version of Statdisk are now available in the new web-based Statdisk Online. Statdisk Online is being actively developed, has new data sets, and will also work on all of your devices (including tablets and Chromebooks). We encourage you to use the web version.
If you still want to download Statdisk 13:
Statdisk 13 is a desktop application for Windows and macOS computers. It was released in January 2017 and may not be fully compatible with more recent operating system versions.