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Research · head to head

Greenphire vs Marvin

Greenphire logo

Greenphire

Research

Clinical trial participant payments, reimbursement and travel, now part of Suvoda

From
On request
Rated
-
Full reviewWebsite
Marvin logo

Marvin

Research

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

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Marvin has a free tier, so it costs nothing to try first.
  • Each has a real cost: Greenphire the standalone greenphire.com site now redirects to Suvoda and the brands have been integrated, so buyers are contracting with a randomisation and supply vendor and should expect cross selling rather than an independent payments specialist.; 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.
  • They diverge on capability: Greenphire covers ClinCard, Marvin covers AI Notetaker.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Greenphire and Marvin actually diverge.

Attributes where Greenphire and Marvin differ
AttributeGreenphireMarvin
Starting priceOn requestFree
Free tierNoYes
PlatformsWeb, iOS, AndroidWeb

Identical on both: pricing model (quote), 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 Greenphire

  • ClinCard
  • Direct to bank payment
  • Expense reimbursement
  • Travel and logistics
  • Site payments
  • Budgeting and benchmarking
  • Tax handling

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

What people use each for

The jobs each tool is most often brought in to do.

Greenphire

  • A global Phase III trial paying stipends across many countries where participants cannot practically be reimbursed by sponsor accounts payablenot Marvin
  • A decentralised or hybrid trial where participants travel long distances and the sponsor funds flights and accommodationnot Marvin
  • A trial in a population where slow reimbursement drives dropout and same day payment materially helps retentionnot Marvin
  • A sponsor that wants site payment milestones and participant payments handled by one vendor rather than twonot Marvin

Marvin

  • A two-person research team that needs interviews transcribed, tagged and searchable without hiring an analyst or buying an enterprise repository.not Greenphire
  • 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 Greenphire
  • A team running discovery at volume that wants an AI moderator to conduct unmoderated interviews overnight and have them analysed by morning.not Greenphire
  • A researcher who needs to send stakeholders a highlight reel of customer quotes rather than a slide deck summarising them.not Greenphire

Where each one falls short

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

Greenphire

  • The standalone greenphire.com site now redirects to Suvoda and the brands have been integrated, so buyers are contracting with a randomisation and supply vendor and should expect cross selling rather than an independent payments specialist.
  • Nothing is published on price, and the typical shape of a platform fee plus per participant and per transaction charges means the cost of a trial is not knowable until enrolment is known.
  • Payment method availability varies sharply by country, so a global protocol may end up with card payments in some regions and slow manual processes in others, which undermines the retention argument that justified the purchase.
  • Sites bear the administrative work of enrolling participants and triggering payments but are not the buyer, so adoption depends on the sponsor mandating it and site resistance is a real implementation risk.
  • Participant payments create tax reporting obligations that differ per jurisdiction, and the tooling helps but does not remove sponsor liability, so legal and finance review is required in every country the trial runs in.

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.

Pricing, plan by plan

Greenphire

On request
  • Greenphire Patient Payments$undefined/year
    • Priced per study through a sales process
    • Typically a platform fee plus per participant and per transaction charges
    • Funding of the payment float is separate from the software fee

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

Which should you pick?

Choose Greenphire if

  • You need clincard.
  • You work on Web, iOS, Android.
  • You also want direct to bank payment.
Greenphire review

Choose Marvin if

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

Questions people ask

Is Greenphire or Marvin better?
Neither clearly leads. Greenphire starts at On request and Marvin at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Greenphire or Marvin?
Marvin has a free tier; the other does not. Paid plans start at On request for Greenphire and Free for Marvin.
Does Greenphire or Marvin run on more platforms?
Greenphire runs on Web, iOS, Android. Marvin runs on Web.
Can I use Marvin for free?
Yes. Marvin has a free tier, so you can try it without paying. Greenphire starts at On request.
What is Greenphire best used for?
Greenphire is most often used for a global phase iii trial paying stipends across many countries where participants cannot practically be reimbursed by sponsor accounts payable, a decentralised or hybrid trial where participants travel long distances and the sponsor funds flights and accommodation, a trial in a population where slow reimbursement drives dropout and same day payment materially helps retention, a sponsor that wants site payment milestones and participant payments handled by one vendor rather than two. Of those, a global phase iii trial paying stipends across many countries where participants cannot practically be reimbursed by sponsor accounts payable and a decentralised or hybrid trial where participants travel long distances and the sponsor funds flights and accommodation are not what Marvin is typically brought in for.
What can Greenphire do that Marvin cannot?
Greenphire covers ClinCard, Direct to bank payment, Expense reimbursement, Travel and logistics. Marvin covers AI Notetaker, AI Moderated Interviewer, Ask AI, Deep Research.

Answered from the vendors’ own pages

Greenphire: Is Greenphire still sold?

Yes, as Greenphire Patient Payments on the Suvoda platform. The independent website and social presence have been consolidated into Suvoda.

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.

Greenphire: What is ClinCard?

The reloadable debit card Greenphire issues to participants. Greenphire Patient Payments was formerly known as ClinCard.

Marvin: What does Pro cost?

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

Greenphire: Does it publish pricing?

No. Pricing is per study and quoted through sales, and funding the payments themselves is separate from the software fee.

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.

Greenphire: Can it pay participants outside the United States?

Yes, in more than thirty currencies, but the available payment method depends on the country.

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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