Sending a document from a phone to a FAX???

[black88coupe]

Anyone know how to send a document from an iPhone to a FAX for free? Lots of apps offer subscriptions but nothing for free. May only due this every once in a while so I don’t want to have to pay a sub fee to do this.
Thanks

 

[99SaleenSpeedster]

I use faxburner.

 

[dave89iroc]

some of the fax apps allow a few free faxes before paying