Yes, both mFax and Nextiva vFax offer a Free Trial.
mFax is designed for Large Enterprises, Medium Business and Small Business.
Nextiva vFax is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for mFax Starts at $10/Month when Billed Yearly whereas for Nextiva vFax Starts at $4.95/Month when Billed Yearly.
Some top alternatives to mFax includes Nextiva, HelloFax, XM Fax, eFax, Sfax, MyFax, WestFax, FAX.PLUS, Fax.to, HylaFAX Enterprise and iFax.
Some top alternatives to Nextiva vFax includes Nextiva, FaxSalad, HelloFax, eFax, OpenText RightFax Fax Server, RingCentral Fax, MyFax, FAX.PLUS, Fax.to, iFax and FaxDroid.