Yes. You are allowed to install any of the Embrilliance programs, including programs like Embrilliance Essentials, Enthusiast, StitchArtist, Density Repair Kit, AlphaTricks, and Thumbnailer on as many computers as you personally own.
Can I install on both Mac and Windows with one license?
You are allowed to install your Embrilliance software on both Mac and Windows platforms as well. If you have one computer running Windows and one Mac, you are able to install Embrilliance on both platforms simultaneously.