The perpetual license has just one payment and is for one computer, a concrete computer. This license will never expire, and you will be able to use it in that computer forever. During the first year you will have online support a response time of 24 hours and updates.
The yearly renewable license has other advantges: you can substitute your computer, always will have the latest version and will have online support with response time of 24 hours.
The characteristics of the software are the same, independently of the licensing version you may have.
