Yes, both Zendesk Sell and 1App offer a Free Trial.
Zendesk Sell is designed for Large Enterprises, Medium Business and Small Business.
1App is designed for Individuals, Medium Business and Small Business.
Pricing for Zendesk Sell Starts at $19/User/Month when yearly whereas for 1App Starts at $9.99/Month.
Some top alternatives to Zendesk Sell includes Thryv, monday sales CRM by monday.com, Pipedrive, Zoho CRM, Vendasta, Hubspot Marketing Hub, ClickUp, Salesforce, HubSpot CRM, Pipeliner CRM, Keap, SalesCRM, SimpleCRM, Snapforce CRM, Salesforce Sales Cloud and Pipeline CRM.
Some top alternatives to 1App includes SalesUp! CRM, Optiin, SalesInvite, Salesmachine, Qualified, Workvivo, SimplyTrends, Instant, Product Stories, IFTTT and RevTap.