No, we will not charge you when your free Edifix trial ends, unless you actively sign up for a paid subscription.

Edifix does not collect payment information when you sign up for a free trial; to convert your free trial to a paid subscription, you must follow the steps outlined here, including providing payment information. 

If you choose not to subscribe to a paid Edifix monthly or annual plan, your free trial will expire and you will no longer be able to use Edifix. However, you won't incur any fees unless you opt in by adding a paid subscription to your Edifix account.