Yes, both Xero and Shiptheory offer a Free Trial.
Xero is designed for Freelancers, Medium Business and Small Business.
Shiptheory is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Shiptheory begins at $25/month when yearly, while pricing details for Xero are unavailable.
Some top alternatives to Xero includes Patriot Accounting, 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 Shiptheory includes and undefined.