You can use I
3S Classic and I
3S Manta
free of any charge. You are allowed
to modify it, copy it, and distribute it under the GNU Public License v2. Please feel free to contact the I
3S team if you need
adaptations of the tool for your research. Any feedback on the tool is welcome and we are
happy to help you. For instructions on how to make pictures that are well enhough to be used in
I
3S, please
read the
instructions.