Obsidian vs Notion: They Solve Completely Different Problems

#obsidian #notion #notetaking #pkm

Obsidian vs Notion: They're Not the Same Tool

Both are "note apps." But the essence is different. Notion is a collaborative database, Obsidian is a personal knowledge graph. Where your markdown files live — that's where everything diverges.

Local vs Cloud
$0 vs $10/mo
As of 2026-05

01 · Essence: One is a DB, the other is files

Comparing these two on the same line keeps going sideways. Notion was built from day one as "a database teams use together," while Obsidian is "a graph view layered on top of a markdown folder on your disk." Where your data lives drives almost every difference.

	Notion	Obsidian
Category	Cloud-first · Collaboration	Local-first · Personal knowledge
Type	SaaS · Block-based DB	Local markdown · Graph
Storage	Notion servers	Your disk
Edit unit	Block	`.md` file
Strength	Team collab · DB	Personal PKM · Backlinks

Same category, different tools.

02 · Pricing: The solo cost gap is significant

For personal use, Obsidian is free, while Notion has a free-tier limit. The moment you need collaboration · DB features together, you're on Notion Plus ($10/user/month). "Same price" comparisons miss the starting point.

Personal free use, cost to unlock core features: ~~$10/mo~~ → $0 (Obsidian, personal use, forever free)

For personal use, Obsidian is fully free — app, plugins, and themes all included. You only pay for add-ons like cross-device Sync or web Publish.

03 · Four key metrics: Four numbers tell the whole story

Pricing · storage location · extensibility · collaboration — the four metrics that most often split note-tool decisions. Just figure out which metric matters most in your workflow and the choice almost makes itself.

Personal monthly cost: $0 (Obsidian free)
Storage location: Local (direct .md files)
Plugin count: 2000+ (community market)
Realtime collaboration: Limited (Notion wins)

04 · Fit — Notion is the answer if…

You need real-time edits on the same page with your team — comments · permissions · co-editing are Notion strengths
You need DB · Kanban · Calendar inside the doc — notes themselves act as databases
Web sharing · publishing is your default workflow — Publish gives you a share URL in one click
You write and review often from mobile — iOS · Android apps are polished
You want to grab from the template marketplace — CRM · wiki · project management out of the box

05 · Fit — Obsidian is the answer if…

Your notes need to outlive the next 10 years — .md files don't care if a service shuts down
You want backlinks · graph to connect knowledge — PKM · Zettelkasten workflow
Local-first — you avoid cloud dependence — sync via Git · iCloud · Dropbox, anything works
You write text only; heavy media lives elsewhere — the editor itself is light and fast
You customize your workflow with plugins — Dataview · Templater · QuickAdd, etc.

06 · Decide it in one line

Even if these two look similar, migration isn't simple. One thing to flag before you move:

Migration Pitfall

"I moved from Notion to Obsidian and all my DBs broke."

Cause: Notion's DB · relational properties don't map 1:1 to markdown. Plain notes move over fine, but pages where relation · rollup · formula are the core have to be rebuilt with Obsidian's Dataview plugin to behave equivalently. Sorting out "does this page actually need DB features?" before migrating cuts the cost dramatically.

The decision rule fits in five lines.

30-second decision guide

Team views it together → Notion (realtime collab · permissions · DB are the wins)
Solo, archive forever → Obsidian (local .md = no lock-in)
Frequent web publishing · external sharing → Notion (Publish = instant share URL)
You want to link and connect concepts → Obsidian (backlinks · graph view at the core)
Using both is also valid → Split roles (sharing = Notion / personal archive = Obsidian)