Every module free for the first week.

A free account opens all 53 modules for 7 days, to work with on screen. Word and PDF reports and model files come with Monthly and Annual, which also keep every module after the week. Launch prices, in US dollars.

First 7 days free: all 53 modules and every unit system, with every value open, to work with on screen. Saving, reports and model files are not part of the free days; they start with the paid period of Monthly or Annual.