Design tools Design Pack For engineers who mainly need structural design calculators, code checks and design outputs. $30/month Recommended for design-focused users Concrete design calculators Steel, masonry and timber design tools Strut and tie design tools Design calculation outputs Best if you mainly use RKALC for member design, checks and design reporting.
Analysis tools Analysis Pack For engineers who mainly need analysis applications, load tools and quick structural checks. $30/month Recommended for analysis-focused users FEAKalc and PTKalc access Wind, static earthquake and beam tools Pile group and tributary area tools Analysis verification workflows Best if you mainly need analysis workflows and do not need the full design suite.
Best value Professional Pack Full RKALC access for engineers who want both analysis and design tools available together. $50/month Best value for regular RKALC users All active Analysis Pack applications All active Design Pack applications Full suite access from one subscription Recommended for professional use Choose this if you want everything RKALC currently offers without deciding module by module.