Only one trial is allowed per user. 

Your free trial plan allows you to Edifix up to 100 references, giving you an opportunity to try out Edifix’s unique reference correction, formatting, and linking tools without committing to a subscription plan. 

Trials expire after one month, but you can sign up for a subscription before then, or any time after! If Edifix is the solution for you, upgrading to a subscription plan is easy; just choose Account>Upgrade or Pricing from the menu at the top of the page.