Our proofreading tool costs $15/month for a user. That's about the price of a nice lunch per month, which is a cheap price to pay for avoiding costly mistakes. We also offer a 30-day free trial, no credit card required, for new users. Don't hesitate to try it.
In case you are interested in buying a lot of licenses for larger company, please contact us at firstname.lastname@example.org to discuss pricing and roll-out.