OpenProject offers Free Trial, but Merlin Project does not.
Merlin Project is designed for Individuals, Freelancers, Medium Business and Small Business.
OpenProject is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Merlin Project begins at $5.83/User/Month when Billed Yearly, while pricing details for OpenProject are unavailable.
Some top alternatives to Merlin Project includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Microsoft PPM, Wrike, Teamwork, ProjectManager.com, ProProfs Project, Microsoft Project, OpenProject, ProWorkflow, Projectworks, Quick Base, OmniFocus and Project Insight.
Some top alternatives to OpenProject includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Freshbooks, Jira, Wrike, Taiga, Asana, Teamwork, ProjectManager.com, Microsoft Project, Leantime, Worksuite, Quick Base, Resource Guru, Redmine X, Height and RedmineUP.