This is a legitimate, ethical way to obtain a free license while contributing to the scientific community.
: If you find and report two or more significant bugs that the developers haven't seen, they will often generate a free registration key for you as a thank you. chemcraft registration key free
, not free software. The developers, as indicated on their website, provide the software to academic users at a lower cost ($290 USD) compared to commercial users ($1100 USD). This is a legitimate, ethical way to obtain