Can I try the software before purchasing it? A Can I try the software before purchasing it? Yes. We are confident GreenKPI’s value proposition is obvious in the first 30 days, so we offer free and full access to the sustainability software for you to experience the power of GreenKPI. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.