Compare software

Asustor Data Master (ADM)Synology DiskStation Manager
Freemium

Included with Asustor NAS hardware; some apps and services are paid add-ons.

 Freemium

Included with Synology NAS hardware; a few services require separate licenses.

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
  • Polished, consistent web interface across the entire Synology hardware lineup
  • Large package center covering backup, media, sync, and surveillance apps
  • Only runs on Asustor's own hardware
  • Smaller third-party app ecosystem than QNAP or Synology
  • Only runs on Synology's own hardware, unlike open NAS operating systems
  • Some advanced features are gated behind specific higher-end models
Self-hosted Self-hosted
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

Checked September 22, 2026

Checked September 22, 2026

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