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BackupPC vs Comet Backup: catalog facts
BackupPC	Comet Backup
Free The open-source software is available without a license fee. Hosting, hardware and…	Paid Commercial software with a free trial.
Linux, Self-hosted, Web	Windows, macOS, Linux, Self-hosted
Coordinates network backups through a server-based system.	Covers Windows, Linux, macOS, hypervisors and Microsoft 365 Choice of Comet cloud, any S3 service or your own storage
Server setup requires additional Perl and transfer dependencies.	Aimed at businesses and MSPs rather than home users Pricing is not shown on the homepage
Self-hosted	Downloadable app, Self-hosted, Hosted service
Open source	Closed source
License: GPL-3.0	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 September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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