All this capability is available in a single integrated system with an identical interface, functionality, and geodata structure for use on Mac OS X, Windows, Sun Solaris, and popular Linux platforms. The interface, database text content, messages, map production, and all other internal aspects of TNTmips have been localized for use in 27 languages including Japanese, Chinese, Arabic, Turkish, Thai, Urdu and all romance languages.
TNTmips Free is a version of TNTmips Pro designed for free student use. TNTmips free is not a demo; it is a fully featured geospatial analysis software package. TNTmips Free is exactly the same program as TNTmips Pro except that the license to use it free-of-charge determines the size, number, and complexity of geodata layers you can use in your project and omits some advanced features.
Further explanation of the license differences can be found here: http://www.microimages.com/products/licenseLevels.htm