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Research · head to head

Marvin vs Obsidian

Marvin logo

Marvin

Research

Qualitative research repository with AI notetaking, and an MCP server you can query from Claude

From
Free
Rated
-
Full reviewWebsite
Obsidian logo

Obsidian

Research

A powerful knowledge base on top of a local folder of plain text Markdown files

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Marvin transcription is inconsistent, with missing punctuation and specifically poor Portuguese accuracy reported, so non-English research teams spend the time cleaning up that the licence was meant to save.; Obsidian sync is a paid add-on at $4 per month billed annually rather than part of the app
  • They diverge on capability: Marvin covers AI Notetaker, Obsidian covers Bidirectional linking.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Marvin and Obsidian actually diverge.

Attributes where Marvin and Obsidian differ
AttributeMarvinObsidian
Pricing modelquoteUnknown
PlatformsWebWeb, Windows, macOS, Linux, iOS, Android
FoundedUnknown2020

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Research).

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 Marvin

  • AI Notetaker
  • AI Moderated Interviewer
  • Ask AI
  • Deep Research
  • Thematic and emotion analysis
  • Clips and highlight reels
  • Virtual observation room
  • MCP server and API

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.

Marvin

  • A two-person research team that needs interviews transcribed, tagged and searchable without hiring an analyst or buying an enterprise repository.not Obsidian
  • A product organisation where findings are never read, wanting product managers to query past research from Claude or ChatGPT instead of logging into a research tool.not Obsidian
  • A team running discovery at volume that wants an AI moderator to conduct unmoderated interviews overnight and have them analysed by morning.not Obsidian
  • A researcher who needs to send stakeholders a highlight reel of customer quotes rather than a slide deck summarising them.not Obsidian

Obsidian

  • Local-first markdown note taking with no account requirednot Marvin
  • Linking notes into a personal knowledge graphnot Marvin
  • Syncing a vault across devices with end-to-end encryption on the paid add-onnot Marvin
  • Publishing a public site from a vaultnot Marvin
  • Extending the editor with community pluginsnot Marvin

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Marvin

  • Transcription is inconsistent, with missing punctuation and specifically poor Portuguese accuracy reported, so non-English research teams spend the time cleaning up that the licence was meant to save.
  • Speaker diarisation errors attribute moderator speech to the participant, and a misattributed quote propagates into themes and into the insight report you show stakeholders, which is a research credibility risk rather than a cosmetic bug.
  • SSO, EU or US data residency, PII redaction and a HIPAA BAA are bundled into a paid Compliance add-on available only from Pro upwards, so the headline Pro quote is never the real price for a regulated or European buyer.
  • Starter includes only two full seats, so a four-researcher team is forced to Pro on seat count alone, and the three-way split between full, collaborator and viewer seats makes cost modelling awkward when no paid tier is priced publicly.
  • Every paid tier is sales-gated with annual commitment typically required, so there is no monthly paid trial and no published seat cost to budget against before entering a sales cycle.
  • Integration coverage has gaps, with no Intercom connector despite repeated requests from teams wanting support conversations in the same repository, and reviewers describe the tags versus labels distinction in the interface as confusing.

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

Marvin

Free
  • FreeFree
    • 2 full seats and 3 collaborator seats
    • 5 file uploads per month
    • AI notetaking and transcription
  • Starter$undefined/year
    • 2 full seats, 10 collaborator seats, 50 viewer seats
    • Unlimited uploads
    • Thematic analysis
  • Pro$undefined/year
    • 5 full seats, 15 collaborator seats, 100 viewer seats
    • Agentic Ask AI and Deep Research
    • Marvin MCP server and API
  • Enterprise$undefined/year
    • 5 full seats, 15 collaborator seats, unlimited viewer seats
    • Salesforce integration included
    • Dedicated support

Obsidian

Free
  • Obsidian Sync$4/month
    • Sync notes across devices
  • Obsidian Publish$8/month
    • Turn notes into a website

Which should you pick?

Choose Marvin if

  • You need ai notetaker.
  • You want to start without paying.
  • You also want ai moderated interviewer.
Marvin review

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.
Obsidian review

Questions people ask

Is Marvin or Obsidian better?
Neither clearly leads. Marvin 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, Marvin or Obsidian?
Marvin starts at Free and Obsidian at Free.
Does Marvin or Obsidian run on more platforms?
Marvin runs on Web. Obsidian runs on Web, Windows, macOS, Linux, iOS, Android.
Can I use Marvin for free?
Both have a free tier, so you can try either at no cost before committing.
What is Marvin best used for?
Marvin is most often used for a two-person research team that needs interviews transcribed, tagged and searchable without hiring an analyst or buying an enterprise repository., a product organisation where findings are never read, wanting product managers to query past research from claude or chatgpt instead of logging into a research tool., a team running discovery at volume that wants an ai moderator to conduct unmoderated interviews overnight and have them analysed by morning., a researcher who needs to send stakeholders a highlight reel of customer quotes rather than a slide deck summarising them.. Of those, a two-person research team that needs interviews transcribed, tagged and searchable without hiring an analyst or buying an enterprise repository. and a product organisation where findings are never read, wanting product managers to query past research from claude or chatgpt instead of logging into a research tool. are not what Obsidian is typically brought in for.
What can Marvin do that Obsidian cannot?
Marvin covers AI Notetaker, AI Moderated Interviewer, Ask AI, Deep Research. Obsidian covers Bidirectional linking, Graph view visualization, Markdown support, Local file storage.

Answered from the vendors’ own pages

Marvin: Is there a genuinely free plan?

Yes. Two full seats, three collaborator seats and five file uploads a month at no cost. It is enough to evaluate the analysis quality on real interviews.

Obsidian: 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.

Source
Marvin: What does Pro cost?

Not published. Only the Free tier carries a price. Starter, Pro and Enterprise are all quoted.

Obsidian: 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.

Source
Marvin: Can I get SSO and EU data residency?

Yes, but as a separately priced Compliance add-on from Pro upwards, not included in any base tier. Price it into the quote from the start.

Obsidian: 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.

Source
Marvin: What is the MCP server for?

It lets Claude, ChatGPT or Copilot query your research repository directly with cited answers, so stakeholders get findings without opening Marvin.

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