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OmniPlan vs Smartsheet: catalog facts
OmniPlan	Smartsheet
Paid Bought once or by subscription, with a free 14-day trial.	Paid Paid subscription with a free trial.
macOS, iOS	Android, Web
Interval and effort tracking with customizable resources Multi-project dashboards across a portfolio	Gantt, Kanban and dashboard views of the same data Portfolio-level reporting and capacity planning
Apple platforms only Paid after the trial	Cloud-only service tied to an account Aimed mainly at businesses and larger teams
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 September 23, 2026

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