Where Obsidian fits
Use it when keeping readable files on your own storage is central to your note-taking approach.
Check before you choose
Review community plugins and choose a backup method independent of any synchronization service.
Find the right edition
Start with the destination for your device or the publisher's website. Use the current requirements and terms there to confirm the edition you need.
Compare the workflow
Separate personal notes, office documents and shared project tracking when comparing options. Local files offer a different ownership model from a hosted workspace, and synchronization is not a substitute for a backup.