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Research · head to head

Castor EDC vs Roam Research

Castor EDC logo

Castor EDC

Research

Electronic data capture and eConsent for clinical trials, built for investigator-initiated studies as well as sponsors

From
On request
Rated
-
Full reviewWebsite
Roam Research logo

Roam Research

Research

A note-taking tool for networked thought

From
$15/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Castor EDC nothing is published: pricing is quoted only after a scoping call and protocol review, so budgeting a grant application means asking for a quote months before the study is funded and hoping the scope holds.; Roam Research cloud-dependent: no local-first option, all data stored on Roam servers
  • They diverge on capability: Castor EDC covers Browser-based study build, Roam Research covers Bi-directional linking.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Castor EDC and Roam Research actually diverge.

Attributes where Castor EDC and Roam Research differ
AttributeCastor EDCRoam Research
Starting priceOn request$15/month
Pricing modelquoteUnknown
PlatformsWeb, iOS, AndroidWeb, iOS, macOS, Windows
FoundedUnknown2017

Identical on both: free tier (No), 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 Castor EDC

  • Browser-based study build
  • 21 CFR Part 11 workflows
  • eConsent
  • ePRO and surveys
  • Randomisation
  • Per-study licensing
  • Grant-funded pricing paths
  • Data export

Only in Roam Research

  • Bi-directional linking
  • Block references
  • Daily notes
  • Graph visualization
  • Sidebar navigation
  • Version history
  • Markdown support
  • TODO management

What people use each for

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

Castor EDC

  • An academic hospital running an investigator-initiated trial that cannot fund a sponsor-grade EDC contract or a data management CROnot Roam Research
  • A medical device company collecting post-market clinical follow-up data with Part 11 audit trailsnot Roam Research
  • A multi-site registry that needs remote eConsent because participants are recruited nationally rather than at a clinicnot Roam Research
  • A biotech running a small phase two study that wants the database built by its own clinical team in weeks rather than commissionednot Roam Research

Roam Research

  • Research notesnot Castor EDC
  • Writing projectsnot Castor EDC
  • Personal knowledge managementnot Castor EDC
  • Academic worknot Castor EDC
  • Creative thinkingnot Castor EDC

Where each one falls short

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

Castor EDC

  • Nothing is published: pricing is quoted only after a scoping call and protocol review, so budgeting a grant application means asking for a quote months before the study is funded and hoping the scope holds.
  • Price scales on protocol complexity rather than a simple unit, so two studies with the same participant count can be quoted very differently and there is no public benchmark to argue against.
  • Modules such as eConsent, ePRO and randomisation are quoted on top of the base platform, so the headline EDC figure is rarely the number that appears on the final proposal.
  • It is deliberately lighter than the full sponsor suites, so a study that grows into a global registrational programme needing integrated CTMS, safety, IRT and full trial supply management will need additional systems and the interfaces between them.
  • Regulatory responsibility does not transfer with the software: the platform supports Part 11 compliant workflows, but system validation for your intended use, SOPs and audit readiness remain your obligation and your cost, which sponsors new to EDC consistently underestimate.

Roam Research

  • Cloud-dependent: no local-first option, all data stored on Roam servers
  • Offline sync issues: offline databases experience slow startup and synchronization problems
  • No native Android app
  • Requires internet connection for most functionality

Pricing, plan by plan

Castor EDC

On request
  • Castor EDC$undefined/year
    • Priced per study on protocol complexity, duration, sites and modules
    • 21 CFR Part 11 and ICH GCP workflows
    • eConsent, ePRO and randomisation modules quoted separately

Roam Research

$15/month
  • Pro$15/month
    • Unlimited graphs
    • Unlimited blocks
    • Daily notes
  • Believer$500/5 years
    • All Pro features
    • Cost effective long-term subscription

Which should you pick?

Choose Castor EDC if

  • You need browser-based study build.
  • You work on Web, iOS, Android.
  • You also want 21 cfr part 11 workflows.
Castor EDC review

Choose Roam Research if

  • You need bi-directional linking.
  • You work on Web, iOS, macOS, Windows.
  • You also want block references.
Roam Research review

Questions people ask

Is Castor EDC or Roam Research better?
Neither clearly leads. Castor EDC starts at On request and Roam Research at $15/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Castor EDC or Roam Research?
Castor EDC starts at On request and Roam Research at $15/month.
Does Castor EDC or Roam Research run on more platforms?
Castor EDC runs on Web, iOS, Android. Roam Research runs on Web, iOS, macOS, Windows.
What is Castor EDC best used for?
Castor EDC is most often used for an academic hospital running an investigator-initiated trial that cannot fund a sponsor-grade edc contract or a data management cro, a medical device company collecting post-market clinical follow-up data with part 11 audit trails, a multi-site registry that needs remote econsent because participants are recruited nationally rather than at a clinic, a biotech running a small phase two study that wants the database built by its own clinical team in weeks rather than commissioned. Of those, an academic hospital running an investigator-initiated trial that cannot fund a sponsor-grade edc contract or a data management cro and a medical device company collecting post-market clinical follow-up data with part 11 audit trails are not what Roam Research is typically brought in for.
What can Castor EDC do that Roam Research cannot?
Castor EDC covers Browser-based study build, 21 CFR Part 11 workflows, eConsent, ePRO and surveys. Roam Research covers Bi-directional linking, Block references, Daily notes, Graph visualization.

Answered from the vendors’ own pages

Castor EDC: Is there a free academic version?

No published free tier. There are academic, non-profit and grant-funded pricing paths, but each is quoted rather than self-service.

Roam Research: Does Roam Research have a free plan?

No, Roam Research does not offer a free plan. However, it includes a 31-day free trial before requiring a subscription to either the Pro plan ($15/month) or Believer plan ($500 for five years).

Source
Castor EDC: Is it 21 CFR Part 11 compliant?

It supports Part 11 compliant workflows with audit trails and electronic signatures. Validating the system for your specific use remains your responsibility.

Roam Research: Can I use Roam Research offline?

Roam Research has limited offline support. Offline databases have significant performance issues, including slow startup times and sync problems. The platform is cloud-dependent and requires internet connectivity for most functionality.

Source
Castor EDC: Do I need a programmer to build a study?

No. Case report forms are configured in the browser, which is the main reason academic groups adopt it.

Roam Research: What platforms does Roam Research support?

Roam Research is available as a web app and native mobile apps for iOS and macOS. Windows users access it through the web app or Electron desktop wrapper. Android support is limited.

Source
Castor EDC: How long does a quote take?

Castor states a full pricing proposal within five business days of sharing the protocol.

Roam Research: Can I export my data from Roam Research?

Yes, you can export your entire database or individual pages as JSON or Markdown format by clicking the three-dot menu. However, block references do not translate perfectly, and migration to other tools may require manual cleanup.

Source
Roam Research: Does Roam Research integrate with Slack?

Roam Research integrates with Slack through Zapier, allowing you to send Slack messages to Roam or add Slack messages to your Roam daily notes. No native Slack integration is available.

Source
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