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OmniPlan vs GanttPRO: catalog facts
OmniPlan	GanttPRO
Paid Bought once or by subscription, with a free 14-day trial.	Paid Paid plans with a 14-day free trial of premium features.
macOS, iOS	Android, iOS, Web
Interval and effort tracking with customizable resources Multi-project dashboards across a portfolio	Critical path and dependency support Work breakdown structure planning
Apple platforms only Paid after the trial	Premium features require a paid plan after the trial Centred on Gantt planning rather than general task boards
Downloadable app	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it 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.