Yes, both Todoist and Zendesk Sell offer a Free Trial.
Todoist is designed for Large Enterprises, Medium Business and Small Business.
Zendesk Sell is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Todoist Starts at $4/Month when Billed Yearly whereas for Zendesk Sell Starts at $19/User/Month when yearly.
Some top alternatives to Todoist includes Connecteam, Smartsheet, Miro, Notion, Process Street, Trello, Wrike, Teamwork, nTask, Microsoft To Do, Remember The Milk, TickTick, Any.do, MeisterTask, ClickUp and TasksBoard.
Some top alternatives to Zendesk Sell includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, Hubspot Marketing Hub, ClickUp, Zoho CRM, Salesforce, HubSpot CRM, Pipeliner CRM, Keap, SalesCRM, SimpleCRM, Snapforce CRM and Pipeline CRM.