Technology · head to head
Amplitude vs Obsidian

Amplitude
Technology
The digital analytics platform to understand your users
- From
- Free
- Rated
- -

Obsidian
Research
A powerful knowledge base on top of a local folder of plain text Markdown files
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Amplitude metered on event volume, so instrumenting more of a product raises the bill even if the audience does not grow; Obsidian sync is a paid add-on at $4 per month billed annually rather than part of the app
- They diverge on capability: Amplitude covers Event tracking, Obsidian covers Bidirectional linking.
Where they differ
Only the attributes on which Amplitude and Obsidian actually diverge.
Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Amplitude
- Event tracking
- User segmentation
- Funnel analysis
- Retention analysis
- Cohort analysis
- A/B testing
- Revenue analytics
- Predictive analytics
Only in Obsidian
- Bidirectional linking
- Graph view visualization
- Markdown support
- Local file storage
- Plugin ecosystem
- Custom CSS themes
- Templates
- Search and tags
What people use each for
The jobs each tool is most often brought in to do.
Amplitude
- User behavior analysisnot Obsidian
- Feature adoption trackingnot Obsidian
- Conversion rate optimizationnot Obsidian
- Customer journey mappingnot Obsidian
- Retention improvementnot Obsidian
Obsidian
- Local-first markdown note taking with no account requirednot Amplitude
- Linking notes into a personal knowledge graphnot Amplitude
- Syncing a vault across devices with end-to-end encryption on the paid add-onnot Amplitude
- Publishing a public site from a vaultnot Amplitude
- Extending the editor with community pluginsnot Amplitude
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Amplitude
- Metered on event volume, so instrumenting more of a product raises the bill even if the audience does not grow
- The free plan covers 2M events a month
- The Plus plan scales to 70M events, above which pricing is custom
- Growth and Enterprise pricing is not published
Obsidian
- Sync is a paid add-on at $4 per month billed annually rather than part of the app
- Publishing to the web is a further $8 per month per site
- Commercial use asks for a $50 per user per year licence, though the vendor states it is not required
- Collaboration is limited compared with a hosted notes tool, since the vault is local files first
Pricing, plan by plan
Amplitude
Free- StarterFree
- 2 million events per month
- Plus$49/month
- $0.049 per MTU
- Up to 300k MTUs
- Advanced analytics
- GrowthFree
- Causal insights
- Feature experimentation
- Real-time streaming
- EnterpriseFree
- Cross-product analysis
- Advanced permissions
- Dedicated account manager
Obsidian
Free- Obsidian Sync$4/month
- Sync notes across devices
- Obsidian Publish$8/month
- Turn notes into a website
Which should you pick?
Choose Amplitude if
- You need event tracking.
- You want to start without paying.
- You work on Web, Ios, Android, Api.
- You also want user segmentation.
Choose Obsidian if
- You need bidirectional linking.
- You want to start without paying.
- You work on Web, Windows, macOS, Linux, iOS, Android.
- You also want graph view visualization.
Questions people ask
- Is Amplitude or Obsidian better?
- Neither clearly leads. Amplitude starts at Free and Obsidian at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Amplitude or Obsidian?
- Amplitude starts at Free and Obsidian at Free.
- Does Amplitude or Obsidian run on more platforms?
- Amplitude runs on Web, Ios, Android, Api. Obsidian runs on Web, Windows, macOS, Linux, iOS, Android.
- Can I use Amplitude for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Amplitude best used for?
- Amplitude is most often used for user behavior analysis, feature adoption tracking, conversion rate optimization, customer journey mapping. Of those, user behavior analysis and feature adoption tracking are not what Obsidian is typically brought in for.
- What can Amplitude do that Obsidian cannot?
- Amplitude covers Event tracking, User segmentation, Funnel analysis, Retention analysis. Obsidian covers Bidirectional linking, Graph view visualization, Markdown support, Local file storage.
Answered from the vendors’ own pages
Amplitude: Does Amplitude have a free plan?
Yes, Amplitude offers a free Starter plan with 2 million events per month and access to the entire platform including analytics, session replay, and experimentation features.
SourceObsidian: Is Obsidian free?
Yes. The core Obsidian application is 100% free for personal and commercial use with no limitations. You can use unlimited vaults and every core feature without payment.
SourceAmplitude: What is Amplitude's pricing based on?
Amplitude's pricing is based on the number of monthly tracked users (MTUs), data volume, and advanced features selected. The Plus plan starts at $49 per month with a rate of $0.049 per MTU.
SourceObsidian: What file format does Obsidian use?
Obsidian stores every note as a plain Markdown file. Because it uses standard Markdown instead of a proprietary format, your notes remain portable and can be edited with many other Markdown editors.
SourceAmplitude: What analytics features does every Amplitude plan include?
Every plan includes access to the full platform: analytics, session replay, feature experimentation, web experimentation, guides and surveys, activation, and AI tools like AI Feedback and AI Assistant.
SourceObsidian: Can I collaborate with others in Obsidian?
The core application does not include built-in team collaboration features. However, Obsidian offers optional add-ons and can be used with version control systems or cloud storage for collaboration.
SourceRelated pages
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