Yes, both Retrium and Freshbooks offer a Free Trial.
Retrium is designed for Large Enterprises, Medium Business and Small Business.
Freshbooks is designed for Freelancers, Medium Business and Small Business.
Pricing for Retrium Starts at $29/Month whereas for Freshbooks Starts at $8/month when monthly.
Some top alternatives to Retrium includes monday.com, Quickbase , Smartsheet, ClickUp, Zoho Projects, Freshbooks, Wrike, ProjectManager.com, Microsoft Project, ProWorkflow, RADAR, TRACR, Worksuite, Watchwork, Quick Base, Resource Guru, Project Insight, Retrocat, Metro Retro and bttr.
Some top alternatives to Freshbooks includes Quickbooks, Xero, Zoho Books, FreeAgent, QuickFile, HoneyBook, Zoho Invoice, Busy Accounting Software, QuickBooks Desktop Pro and Wave.