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Rockstor vs QNAP QTS: catalog facts
Rockstor	QNAP QTS
Free Open source; the project also offers commercial support options.	Freemium Included with QNAP NAS hardware; some apps and services are paid add-ons.
Linux, Self-hosted	Linux, Self-hosted
Multi-arch and Btrfs-based, giving snapshot and replication features without proprietary lock-in Application framework lets users extend the NAS with additional services	Wide app catalog through the QNAP App Center for expanding NAS functionality Built-in Container Station and virtualization support for running extra services
Smaller community and plugin ecosystem than TrueNAS or OpenMediaVault Btrfs still requires more care around RAID levels than mature ZFS setups	Only runs on QNAP's own hardware, unlike open NAS operating systems ext4 base lacks the snapshot and dedupe depth of QNAP's ZFS-based QuTS hero
Self-hosted, Downloadable app	Self-hosted
Open source	Closed source
License not stated	License not stated
Not stated if an account is 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 22, 2026	Official website Full listing and sources Checked September 22, 2026

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