Yes, both Freshbooks and Intervals offer a Free Trial.
Freshbooks is designed for Freelancers, Medium Business and Small Business.
Intervals is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Freshbooks Starts at $8/month when monthly whereas for Intervals Starts at $29/Month.
Some top alternatives to Freshbooks includes Xero, Patriot Accounting, Quickbooks, Zoho Books, FreeAgent, QuickFile, HoneyBook, Zoho Invoice, Busy Accounting Software, QuickBooks Desktop Pro and Wave.
Some top alternatives to Intervals includes Quickbase , Smartsheet, ClickUp, Zoho Projects, TimeTracker App, Tick, TimeTrack, Time Track Bill, TimeControl, Wrike, Track My Work, Teamwork, ProjectManager.com, ProWorkflow, Quick Base and TaskBlast.