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Armbian vs Ubuntu Core: catalog facts
Armbian	Ubuntu Core
Free Free and open source.	Freemium Free to download and try; Canonical sells commercial support and device services.
Linux	Linux
Supports more than 300 ARM boards Kernels patched and tested per board	Immutable system with transactional updates Strict confinement of applications through snaps
Only for ARM hardware Support quality can vary between boards	Built around snaps; traditional packages are not the model Aimed at device makers rather than desktop users
Operating system	Operating system
Open source	Open 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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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