Your single license gives you 2 installations. They can both be Windows or both Mac or one of each!
For engineers or scientists working in industry
One-time $395 fee for a perpetual license
For teachers at all levels of education
One-time $249 fee for a perpetual license
For high school teacher, mathematics enthusiasts to use at home or students interested in geometry
and mathematics.
One-time $59 fee for a perpetual license
Request a quote for a site license of Geometry Expressions