https://blog.stephenwolfram.com/2019/05/launching-today-free-wolfram-engine-for-developers/

http://www.wolfram.com/engine/

The Free Wolfram Engine for Developers is available for pre-production software development.

You can use this product to:

• Develop a product for yourself or your company

• Conduct personal projects at home, at school, at work

• Explore the Wolfram Language for future production projects