Yes, both Xero and Accelo offer a Free Trial.
Xero is designed for Freelancers, Medium Business and Small Business.
Accelo is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Accelo begins at $24/User/Month when Billed Yearly, while pricing details for Xero are unavailable.
Some top alternatives to Xero includes Quickbooks, Sage Accounting (Sage One), Zoho Books, Zoho Daybook, QuickFile, Sage Business Cloud Accounting, MYOB, QuickBooks Desktop Pro, QuickBooks Online Advanced and Sage 50cloud Accounting.
Some top alternatives to Accelo includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Scoro, Wrike, ManagePro, Asana, Teamwork, ProjectManager.com, ProProfs Project, Microsoft Project, GanttPRO, ProWorkflow, ProgressBoard and Quick Base.