To use software listed on stricteq.com to make money or for work, you need to buy a license. If you’re part of a team, everyone on your team who uses the software needs to buy a license.
Otherwise, you can use and share the software for free. That includes trying before you buy, to make sure the software works and integrates well with your prototypes.
Everyone’s welcome to contribute fixes and improvements under a broad, free license like the Blue Oak Model License. If you’d like to become a partner in development, e-mail the developer.
The legal terms for paid licenses are at https://stricteq.com/paid.
The legal terms for free licenses are at https://stricteq.com/free.