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Comet Backup vs Minarca: catalog facts
Comet Backup	Minarca
Paid Commercial software with a free trial.	Free Free and open source with no licensing fees.
Windows, macOS, Linux, Self-hosted	Windows, macOS, Linux, Self-hosted, Command line
Covers Windows, Linux, macOS, hypervisors and Microsoft 365 Choice of Comet cloud, any S3 service or your own storage	Central server with dashboard and problem alerts Multi-tenant accounts with per-user quotas
Aimed at businesses and MSPs rather than home users Pricing is not shown on the homepage	Requires running your own server File-based only, not full system images
Downloadable app, Self-hosted, Hosted service	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License not stated
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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