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Customer Support · head to head

Kustomer vs Mimecast

Kustomer logo

Kustomer

Customer Support

The future of customer service

From
On request
Rated
-
Full reviewWebsite
Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kustomer pricing not published; requires customised sales assessment and quote for exact costs; Mimecast no pricing is published for any product or plan, and every route ends at a quote or demo request
  • They diverge on capability: Kustomer covers Unified customer view, Mimecast covers Advanced threat detection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Kustomer and Mimecast actually diverge.

Attributes where Kustomer and Mimecast differ
AttributeKustomerMimecast
Starting priceOn request$4/month
Pricing modelquotesubscription
PlatformsWeb, CloudEmail, Cloud, Collaboration
CategoryCustomer SupportCybersecurity
Founded20152003

Identical on both: free tier (No), 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 Kustomer

  • Unified customer view
  • AI automation
  • Omnichannel
  • Workflow automation
  • Knowledge base
  • Analytics
  • Shopify
  • Magento

Only in Mimecast

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

Both cover

  • GDPR

What people use each for

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

Kustomer

  • Large B2C and B2B organisations managing 600+ customer support interactions across omnichannel platformsnot Mimecast
  • Retail, financial services, travel and hospitality sectors requiring integrated AI-powered supportnot Mimecast
  • Enterprises seeking customer 360 views and advanced workflow automationnot Mimecast

Mimecast

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

Where each one falls short

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

Kustomer

  • Pricing not published; requires customised sales assessment and quote for exact costs
  • Voice (call), SMS, and WhatsApp support operate on separate pay-as-you-go pricing models
  • Customisation-based pricing structure means no transparent cost comparison with competitors

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

Pricing, plan by plan

Kustomer

On request

No published plan breakdown. See the Kustomer review.

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

Which should you pick?

Choose Kustomer if

  • You need unified customer view.
  • You work on Web, Cloud.
  • You also want ai automation.
Kustomer review

Choose Mimecast if

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

Questions people ask

Is Kustomer or Mimecast better?
Neither clearly leads. Kustomer starts at On request and Mimecast at $4/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kustomer or Mimecast?
Kustomer starts at On request and Mimecast at $4/month.
Does Kustomer or Mimecast run on more platforms?
Kustomer runs on Web, Cloud. Mimecast runs on Email, Cloud, Collaboration.
What is Kustomer best used for?
Kustomer is most often used for large b2c and b2b organisations managing 600+ customer support interactions across omnichannel platforms, retail, financial services, travel and hospitality sectors requiring integrated ai-powered support, enterprises seeking customer 360 views and advanced workflow automation. Of those, large b2c and b2b organisations managing 600+ customer support interactions across omnichannel platforms and retail, financial services, travel and hospitality sectors requiring integrated ai-powered support are not what Mimecast is typically brought in for.
What can Kustomer do that Mimecast cannot?
Kustomer covers Unified customer view, AI automation, Omnichannel, Workflow automation. Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. Both handle GDPR.

Answered from the vendors’ own pages

Kustomer: How much does Kustomer cost?

Kustomer uses a custom, quote-based pricing model and does not publish standard rates. Every CX team setup is different, so pricing varies based on company size, number of support agents, and monthly conversation volume.

Source
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
Kustomer: How do I get a Kustomer pricing quote?

Complete a 2-minute ROI calculator assessment that gathers information about your industry, company size, agent count, and monthly conversation volume. Results provide directional pricing estimates before sales connects with you.

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
Kustomer: Are there add-on costs for Kustomer features?

Yes, add-on services include HIPAA Enabled Subscription, implementation services, Voice, SMS, and WhatsApp support on a pay-as-you-go model.

Source
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