ThinkingRock can be used on MS Windows, Linux, and/or Mac OSX (multi-platform). It is NOT web-based. One license allows you to download the corresponding software for each platform. The same data file is then shared between the platform using an usb key, cloud server, Dropbox or equivalent. Your data is stored locally, wherever you feel it is safe.
ThinkingRock has been thoroughly tested and is used by more than 6,000 users.
The development started in 2005. Suggestions from users have been progressively added.
ThinkingRock is a Java application developed on the NetBeans platform. As Java is included in the package downloaded, there is no need to install Java separately.