HelloFax offers Free Trial, but FaxZero does not.
FaxZero is designed for Individuals and Small Business.
HelloFax is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for FaxZero Starts at $1.99 whereas for HelloFax Starts at $8.33/Month when Billed Yearly.
Some top alternatives to FaxZero includes Nextiva, HelloFax, eFax, OpenText RightFax Fax Server, MyFax, FAX.PLUS, Genius Fax, PamFax, Fax Rocket, Fax.to and iFax.
Some top alternatives to HelloFax includes Nextiva, mFax, eFax, Nextiva vFax, MyFax, FAX.PLUS, Genius Fax, AvantFAX, Fax.to, iFax and FaxDroid.