Yes, both Freshbooks and Swell offer a Free Trial.
Freshbooks is designed for Freelancers, Medium Business and Small Business.
Swell is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Freshbooks Starts at $8/month when monthly whereas for Swell Starts at $199/Month when Billed Yearly.
Some top alternatives to Freshbooks includes Quickbooks, Xero, Zoho Books, FreeAgent, QuickFile, HoneyBook, Zoho Invoice, Busy Accounting Software, QuickBooks Desktop Pro and Wave.
Some top alternatives to Swell includes Customer Alliance, ReviewBuzz, Reputation.com, Critique, Guestmeter, Rize Reviews, Reptrics, Reputation Studio, ReviewRev and ReviewGain.