Yes, both Xero and Order MS offer a Free Trial.
Xero is designed for Freelancers, Medium Business and Small Business.
Order MS is designed for Individuals, Large Enterprises, Medium Business and Small Business.
The starting price of Order MS begins at $25/User/Month, 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 Order MS includes Rutamsoft Inventory Management System, inFlow Inventory, Multiorders, CyberStockroom, ZapInventory, Shopventory, Acctivate Inventory Software and EZOfficeInventory.