Yes, both Zest and EcomTax offer a Free Trial.
Zest is designed for Individuals, Medium Business and Small Business.
EcomTax is designed for Large Enterprises, Medium Business and Small Business.
The starting price of EcomTax begins at $19/Month, while pricing details for Zest are unavailable.
Some top alternatives to Zest includes ActiveChat, LiveAgent, Justclarify, Casengo, SupportChamp, DeskMoz, Little SaaS Communication, Qualified, StoryFile Conversa, Workvivo, Personalizard and Sociocs.
Some top alternatives to EcomTax includes ClearTax GST Software, Qualified, Thomson Reuters ONESOURCE, Workvivo, Fonoa Reporting, Sovos Taxify, CCH SureTax, Anrok, Avalara, Fonoa Tax, IFTTT and TaxJar.