Yes, both Roger and K2 offer a Free Trial.
Roger is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
K2 is designed for Large Enterprises, Medium Business and Small Business.
The starting price of K2 begins at $2,000/Month, while pricing details for Roger are unavailable.
Some top alternatives to Roger includes Odoo Accounting, easybook.io, Kashflow, Kashoo, DOKKA, QuickFile, K2, AccountsIQ and Eleven.
Some top alternatives to K2 includes Nintex, ProcessMaker, BP Logix BPMS, Nintex Promapp, IBM Business Automation Workflow, ProcessPlan, Bautomate, Bizagi, Tibco BPM Enterprise and BPMapp by 500apps.