Nextiva offers Free Trial, but eFax does not.
eFax is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Nextiva is designed for Large Enterprises, Medium Business and Small Business.
Pricing for eFax Starts at $14.13/Month when Billed Yearly whereas for Nextiva Starts at $18.95/User/Month when Billed Yearly.
Some top alternatives to eFax includes Nextiva, mFax, HelloFax, eFax Corporate, Nextiva vFax, MyFax, FAX.PLUS, Genius Fax, Fax.to, iFax and FaxDroid.
Some top alternatives to Nextiva includes uContact, Call Center Studio, Grasshopper, Dialpad Contact Center, Vonage Contact Center, RingCentral Contact Center, ipSCAPE and OmniOMS Customer Communication Management Suite.