Yes, both Susan One and Freshbooks offer a Free Trial.
Susan One is designed for Large Enterprises, Medium Business and Small Business.
Freshbooks is designed for Freelancers, Medium Business and Small Business.
The starting price of Freshbooks begins at $8/month when monthly, while pricing details for Susan One are unavailable.
Some top alternatives to Susan One includes Quickbooks, Xero, Freshbooks, Sage Accounting (Sage One), Zoho Books, ActivityHD, FreeAgent, AlignBooks, QuickFile, MYOB, Busy Accounting Software, AccountsIQ and Wave.
Some top alternatives to Freshbooks includes Quickbooks, Xero, Zoho Books, FreeAgent, QuickFile, HoneyBook, Zoho Invoice, Busy Accounting Software, QuickBooks Desktop Pro and Wave.