Yes, both Kustomer and InSync offer a Free Trial.
Kustomer is designed for Large Enterprises, Medium Business and Small Business.
InSync is designed for Large Enterprises, Small Business and Medium Business.
The starting price of Kustomer begins at $29/User/Month, while pricing details for InSync are unavailable.
Some top alternatives to Kustomer includes Zendesk Support, Tidio Helpdesk, Zendesk Sell, Freshservice, Freshdesk, Zoho Desk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Salesforce Service Cloud, CRMdesk, Gorgias, Trakdesk, AzureDesk and BoldDesk.
Some top alternatives to InSync includes and undefined.