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OmniPlan vs Merlin Project: catalog facts
OmniPlan	Merlin Project
Paid Bought once or by subscription, with a free 14-day trial.	Paid Paid software with a free 30-day trial.
macOS, iOS	macOS, iOS
Interval and effort tracking with customizable resources Multi-project dashboards across a portfolio	Gantt, Kanban, mind map and workload views share one data source Works offline without a browser or constant connection
Apple platforms only Paid after the trial	Apple platforms only Paid after the trial period
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.