The Calculators Plugins have a user-based licensing and pricing system. Users are those who either perform physico-chemical calculations with the Calculators Plugins or use the calculated properties for any purposes.
The following calculations are free, so they don't require any license in any of the ChemAxon products where they are available:
NOTE: Only the 2D (Topological) Polar Surface Area calculation is free in the Geometry Group.
The 7 available licenses cover the following calculations. Once purchased, they allow the usage of the corresponding calculations in any of the ChemAxon products where they are available:
NOTE: The Structural Calculations license covers a wide selection of structural calculations grouped together from our earlier set of calculations. Individual calculations/groups can't be purchased separately.
NOTE: Using generated tautomers for search purposes (JChem tautomer search) does not require an Isomers license. This use-case is covered by the JChem Base license.
Since 1st July 2015 the old Calculations Pack and All Plugin licenses are not available for purchase. Our users who have Calculations Pack licenses and would like to renew them can choose any 3 of the licenses above. Our users who have the All Plugin licenses and would like to renew them get all the licenses above.
Since v. 21.1 physico-chemical property calculations do not require the corresponding Calculator Plugins licenses in MarvinSketch, only the MarvinBeans license. Please note that this is only true for MarvinSketch and does not include batch mode calculations (cxcalc) or calculations in other ChemAxon softwares (e.g. JChem, JC4O).
See the licensing page of MarvinSketch here.