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3DPrinterOS vs Polar Cloud: catalog facts
3DPrinterOS	Polar Cloud
Best for: Universities and companies running shared 3D printer fleets	Best for: Schools and makers managing several 3D printers from one web dashboard
Paid Paid cloud service with a 14-day trial.	Free + paid options Free for personal home use; education plans start at $199 per year and enterprise pricing is by quote.
Web	Web
Central control of many printers and users Visibility into who prints what and where All 3 strengths for 3DPrinterOS Central control of many printers and users Visibility into who prints what and where Aimed at schools, labs and print farms	Works with printers from many brands, OctoPrint and Klipper Cloud slicing and job queues in one place All 3 strengths for Polar Cloud Works with printers from many brands, OctoPrint and Klipper Cloud slicing and job queues in one place Classroom controls for managing student prints
Cloud-only service Designed for organisations rather than a single home printer	Depends on a cloud service and an account Free plan is limited to home use and 500 MB of storage All 3 limitations for Polar Cloud Depends on a cloud service and an account Free plan is limited to home use and 500 MB of storage Fleet features require paid plans
Web application, Hosted service	Hosted service
Not open source	Not open source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Sources for 3DPrinterOS 3dprinteros.com Catalog checked September 23, 2026	Official website Full listing and sources Sources for Polar Cloud polar3d.com Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.