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Cybersecurity · head to head

Mimecast vs Rapid7 InsightVM

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Rated
-
Full reviewWebsite
Rapid7 InsightVM logo

Rapid7 InsightVM

Cybersecurity

Vulnerability management at scale

From
$1.62/month
Rated
-
Full reviewWebsite

The short version

  • 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; Rapid7 InsightVM insightVM is now sold inside Exposure Command rather than as a standalone product
  • They diverge on capability: Mimecast covers Advanced threat detection, Rapid7 InsightVM covers Asset discovery.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Mimecast and Rapid7 InsightVM actually diverge.

Attributes where Mimecast and Rapid7 InsightVM differ
AttributeMimecastRapid7 InsightVM
Starting price$4/month$1.62/month
Pricing modelsubscriptionusage-based
PlatformsEmail, Cloud, CollaborationWeb, Cloud, Api
Founded20032000

Identical on both: free tier (No), user rating (Not yet rated), category (Cybersecurity).

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 Rapid7 InsightVM

  • Asset discovery
  • Vulnerability scanning
  • Risk prioritization
  • Threat intelligence
  • Custom policies
  • Remediation tracking
  • Compliance reporting
  • API access

Both cover

  • Slack
  • Jira
  • ServiceNow
  • SOC2 Type 2
  • ISO 27001
  • GDPR
  • Saas deployment
  • Cloud deployment

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 Rapid7 InsightVM
  • Email archiving, continuity and compliance for organisationsnot Rapid7 InsightVM

Rapid7 InsightVM

  • Vulnerability management and risk assessmentnot Mimecast
  • Web application security scanningnot Mimecast
  • Cloud infrastructure security monitoringnot 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

Rapid7 InsightVM

  • InsightVM is now sold inside Exposure Command rather than as a standalone product
  • Rapid7 states pricing is not publicly listed and is provided by custom quote based on the customer's environment
  • Billing counts billable assets including devices, software, identities, cloud compute instances and applications, so the asset count grows faster than a device inventory suggests
  • Cloud security, compliance, infrastructure as code scanning and application security testing require the Ultimate package rather than Essentials
  • Volume discounts are described as commonly available for larger asset counts, so smaller buyers pay the higher unit rate

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

Rapid7 InsightVM

$1.62/month
  • InsightVM$1.62/month per asset
    • Vulnerability risk management
    • Unlimited user accounts
    • 24/7 technical support
  • InsightAppSec$175/month
    • Web application security
    • Per application pricing
    • Unlimited user accounts
  • InsightCloudsec$5775/month
    • Cloud security
    • Up to 500 instances
    • Unlimited user accounts

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 Rapid7 InsightVM if

  • You need asset discovery.
  • You work on Web, Cloud, Api.
  • You also want vulnerability scanning.
Rapid7 InsightVM review

Questions people ask

Is Mimecast or Rapid7 InsightVM better?
Neither clearly leads. Mimecast starts at $4/month and Rapid7 InsightVM at $1.62/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or Rapid7 InsightVM?
Mimecast starts at $4/month and Rapid7 InsightVM at $1.62/month.
Does Mimecast or Rapid7 InsightVM run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. Rapid7 InsightVM runs on Web, Cloud, Api.
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 Rapid7 InsightVM is typically brought in for.
What can Mimecast do that Rapid7 InsightVM cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. Rapid7 InsightVM covers Asset discovery, Vulnerability scanning, Risk prioritization, Threat intelligence. Both handle Slack, Jira, ServiceNow, SOC2 Type 2.

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
Rapid7 InsightVM: What is the starting price for Rapid7 InsightVM?

InsightVM starts at $1.62 per month per asset, with example pricing provided for 500-asset deployments.

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
Rapid7 InsightVM: How much does InsightAppSec cost?

InsightAppSec starts at $175 per month per application for web application security scanning.

Source
Rapid7 InsightVM: What does InsightCloudsec cover?

InsightCloudsec starts at $5,775 per month for cloud security monitoring of up to 500 instances.

Source
Rapid7 InsightVM: Do Rapid7 products include unlimited user accounts?

Yes, all Rapid7 products include unlimited user accounts, 24/7 technical support, single sign-on, and customer-success team access.

Source
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