Softwr

Cybersecurity · head to head

Mimecast vs Yarn

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Free plan
No
Full reviewWebsite
Yarn logo

Yarn

Developer Tools

Fast, reliable, and secure dependency management

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Yarn has a free tier, so it costs nothing to try first.
  • Each has a real cost: Mimecast no pricing is published for any product or plan, and every route ends at a quote or demo request; Yarn yarn 2+ (Berry) has limited ESM support which can be a constraint for some projects
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Mimecast and Yarn actually diverge.

Attributes where Mimecast and Yarn differ
AttributeMimecastYarn
Starting price$4/monthFree
Pricing modelsubscriptionfree
Free tierNoYes
PlatformsEmail, Cloud, CollaborationWeb, Linux, macOS, Windows
CategoryCybersecurityDeveloper Tools
Founded20032016

Identical on both: 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 Mimecast

  • Advanced threat detection
  • Secure sharing
  • Email encryption
  • Message tracking
  • Email archiving
  • Legal hold
  • eDiscovery
  • Backup and recovery

Only in Yarn

Nothing recorded that Mimecast does not also cover.

What people use each for

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

Mimecast

  • Email security filtering against phishing and targeted attacksnot Yarn
  • Email archiving, continuity and compliance for organisationsnot Yarn

Yarn

  • Monorepo teams managing dependencies across 50+ interdependent packagesnot Mimecast
  • Enterprise JavaScript projects ensuring reproducible builds across CI/CDnot Mimecast
  • Open-source projects with plugin ecosystems coordinating versionsnot Mimecast
  • Teams requiring consistent package installs regardless of network conditionsnot Mimecast

Where each one falls short

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

Mimecast

  • No pricing is published for any product or plan, and every route ends at a quote or demo request
  • The platform is split into separately sold products for email security, awareness training, data protection and governance
  • Collaboration threat protection, DMARC analysis, incident response and email archiving are all further add ons on top of those

Yarn

  • Yarn 2+ (Berry) has limited ESM support which can be a constraint for some projects
  • Smaller ecosystem and community compared to npm, though still substantial

Pricing, plan by plan

Mimecast

$4/month
  • Defender$4/month
    • Per user
    • Threat protection
    • Impersonation prevention
  • Archive$3/month
    • Email archiving
    • Legal hold
    • Search & recall
  • Unified$6/month
    • All Defender features
    • All Archive features
    • Backup

Yarn

Free

No published plan breakdown. See the Yarn review.

Which should you pick?

Choose Mimecast if

  • You need advanced threat detection.
  • You work on Email, Cloud, Collaboration.
  • You also want secure sharing.
Mimecast review

Choose Yarn if

  • You want to start without paying.
  • You work on Web, Linux, macOS, Windows.
Yarn review

Questions people ask

Is Mimecast or Yarn better?
Neither clearly leads. Mimecast starts at $4/month and Yarn at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or Yarn?
Yarn has a free tier; the other does not. Paid plans start at $4/month for Mimecast and Free for Yarn.
Does Mimecast or Yarn run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. Yarn runs on Web, Linux, macOS, Windows.
Can I use Yarn for free?
Yes. Yarn has a free tier, so you can try it without paying. Mimecast starts at $4/month.
What is Mimecast best used for?
Mimecast is most often used for email security filtering against phishing and targeted attacks, email archiving, continuity and compliance for organisations. Of those, email security filtering against phishing and targeted attacks and email archiving, continuity and compliance for organisations are not what Yarn is typically brought in for.
What can Mimecast do that Yarn cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking.

Answered from the vendors’ own pages

Mimecast: How much does Mimecast cost?

Mimecast does not publish pricing on its website. Customers must request a custom quote by contacting the sales team at +1 617 393 7000 or using the Get a Quote button.

Source
Yarn: What is Yarn's main advantage over npm?

Yarn downloads packages in parallel, significantly reducing installation time. It uses a yarn.lock file for deterministic installs, ensuring identical package versions across machines and preventing version conflicts common with npm.

Source
Mimecast: Is there a free trial of Mimecast?

Mimecast's trial and pricing options are not specified on the public website. Contact sales at +1 617 393 7000 or through their support portal at mimecastsupport.zendesk.com for trial availability.

Source
Yarn: Can I use Yarn in offline environments?

Yes, Yarn supports secure offline environments. The yarn.lock file enables reproducible installs without requiring new downloads.

Source
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