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Asustor Data Master (ADM) vs HexOS: catalog facts
Asustor Data Master (ADM)	HexOS
Freemium Included with Asustor NAS hardware; some apps and services are paid add-ons.	Paid Paid product built on the open-source TrueNAS Scale base.
Linux, Self-hosted	Linux, Self-hosted
App Central catalog covers backup, media server, and surveillance add-ons Btrfs snapshot support for point-in-time data protection	Simplifies TrueNAS Scale setup for non-technical users Aimed specifically at regaining control over personal data and privacy
Only runs on Asustor's own hardware Smaller third-party app ecosystem than QNAP or Synology	Paid product rather than free like the TrueNAS base it builds on Newer project with a smaller support community than TrueNAS itself
Self-hosted	Self-hosted, Downloadable app
Closed 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.