Fortran compiler

[FX Coudert]

>   I am interested in your company's Fortran Compiler.
>   Is it free? If not, how much for a permanent license?

gfortran is free, part of GCC which is open source software. It is provided on your system:

- for Windows see there: https://gcc.gnu.org/wiki/GFortranBinaries
- for macOS, as part of Homebrew and Macports
- for Linux, as part of gcc in your system package management

Best regards,
FX