Yes, both Trengo and Front offer a Free Trial.
Trengo is designed for Large Enterprises, Medium Business and Small Business.
Front is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Front begins at $19/User/Month, while pricing details for Trengo are unavailable.
Some top alternatives to Trengo includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, ClickDesk, Front, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Desky, eStreamDesk, Help Scout, UseDesk and LabiDesk.
Some top alternatives to Front includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, Deskero, Teamwork Desk, SeamlessDesk, HelpDesk, Jitbit Helpdesk, Rhino Support, ReadyDesk, Sitehelpdesk, LabiDesk, Help Desk Premier and BoldDesk.