NotionThe AI workspace that works for you.

ObsidianSharpen your thinking. The free and flexible app for your private thoughts.

Comparison · Knowledge Management · weekly run Nov 3

Notion vs Obsidian

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Notion is the stronger AI pick in Knowledge Management: it has a visibility score of 57.4 versus 5.2 for Obsidian, and ranks ahead in 83% of the answers that name both.

Choose Notion if…

You want the brand AI engines rank higher (57.4 vs 5.2)
You need SOC 2 Type II or ISO 27001 or ISMAP or BSI C5 or ISO 27017 or ISO 27018 or ISO 27701 or HIPAA or GDPR or CCPA coverage
You prefer a larger, established vendor (501–1,000 employees)
flexible all-in-one workspace

Choose Obsidian if…

You want a lower entry price ($4 vs $10)
AI answers describe it more positively (50% vs 40% positive)
Strong for personal knowledge management
Maximum ownership of your files

AI visibility side by side

Latest weekly run · Nov 3

Metric	Notion	Obsidian
Visibility score	57.4%	5.2%
Change vs last week	New	New
Rank in Knowledge Management	#1	#17
Share of voice	10.9%	1.1%
Mentions this run	58	6
Positive in AI answers	40%	50%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

Notion 0pp · Obsidian 0pp over 0 weekly runs.

Engine by engine

Notion leads on 3 of 3 engines

ChatGPT

61.9%

8.2%

AI Mode

62.6%

3.1%

Perplexity

47.8%

4.3%

NotionObsidian

Head to head in AI answers

6 engine answers name both brands

5Notion ranked higher

1Obsidian ranked higher

Prompt	Engine	Notion	Obsidian
Alternatives to the most popular knowledge management tool	ChatGPT	#1	#2
Alternatives to the most popular knowledge management tool	AI Mode	#1	#2
Alternatives to the most popular knowledge management tool	Perplexity	#1	#7
Best knowledge management tool with AI features	ChatGPT	#1	#6
Most affordable knowledge management tool that is still reliable	ChatGPT	#2	#1
Most affordable knowledge management tool that is still reliable	Perplexity	#1	#2

Features, pricing & fit

Dimension	Notion	Obsidian
Pricing model	Per seat	Per seat
Entry price	Free; paid from $10 per seat / mo	Free; paid from $4 per seat / mo
Free plan	Yes	Yes
Deployment	Cloud-hosted, with web, desktop and mobile apps	Local desktop and mobile apps, with optional cloud Sync and Publish add-ons
Compliance	SOC 2 Type II, ISO 27001, ISMAP, BSI C5, ISO 27017, ISO 27018, ISO 27701, HIPAA, GDPR, CCPA	—
Support	Help button in the app, Priority support, Premium support (custom), Customer success manager (Enterprise)	Discord community, Discussion forum, Help site, Priority support with paid Sync and Publish plans
Founded	2016	2020
Headquarters	San Francisco, California, United States	Toronto, Ontario, Canada
Employees	501–1,000	1–10
Funding	Tender offer · $335M raised	Bootstrapped
Best for	Individuals, small teams, growing businesses and enterprises that want docs, databases and AI agents in one workspace	Individuals and small teams who want private notes stored locally as plain text files they can keep long term