Nextiva offers Free Trial, but Fax Rocket does not.
Fax Rocket is designed for Individuals, Medium Business and Small Business.
Nextiva is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Fax Rocket Starts at $1 whereas for Nextiva Starts at $18.95/User/Month when Billed Yearly.
Some top alternatives to Fax Rocket includes Nextiva, mFax, HelloFax, eFax, OpenText RightFax Fax Server, MyFax, FaxZero, FAX.PLUS, Genius Fax, Fax.to and iFax.
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.