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Cybersecurity · head to head

Mimecast vs Rhombus Systems

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Rated
-
Full reviewWebsite
Rhombus Systems logo

Rhombus Systems

Cybersecurity

Cloud-managed cameras, sensors and access control with a per-camera annual licence

From
$149/year
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; Rhombus Systems the per-camera annual licence never ends and a camera without an active licence stops working, so the total cost over a ten-year hardware life is several times the hardware price.
  • They diverge on capability: Mimecast covers Advanced threat detection, Rhombus Systems covers On-camera storage.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Mimecast and Rhombus Systems actually diverge.

Attributes where Mimecast and Rhombus Systems differ
AttributeMimecastRhombus Systems
Starting price$4/month$149/year
Pricing modelsubscriptionPer camera per year licence plus hardware
PlatformsEmail, Cloud, CollaborationWeb, iOS, Android
Founded2003Unknown

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 Rhombus Systems

  • On-camera storage
  • No NVR or server
  • AI search
  • Access control
  • Environmental sensors
  • Unlimited users
  • Ten year hardware warranty
  • Optional cloud archiving

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 Rhombus Systems
  • Email archiving, continuity and compliance for organisationsnot Rhombus Systems

Rhombus Systems

  • A school district running video across dozens of buildings with no local IT at each sitenot Mimecast
  • A clinic group needing door access and cameras in one console under a single audit trailnot Mimecast
  • A logistics operator that wants to search for a specific vehicle across sites without scrubbing footagenot Mimecast
  • An office estate replacing ageing NVRs where nobody remains who knows how to maintain themnot 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

Rhombus Systems

  • The per-camera annual licence never ends and a camera without an active licence stops working, so the total cost over a ten-year hardware life is several times the hardware price.
  • Cameras must be Rhombus, so there is no reuse of existing IP cameras and migrating away means replacing every device rather than changing software.
  • Cloud archiving is priced separately by retention and stream count, and long retention on multisensor cameras runs into five figures per camera, which can dwarf everything else in the quote.
  • On-camera storage is the default retention, so a camera physically stolen or destroyed takes its unarchived footage with it unless cloud archiving was paid for on that camera.
  • Analytics and integrations are good for mid-market needs but shallower than a dedicated enterprise VMS with a large third-party ecosystem, so specialist requirements like advanced LPR or forensic search hit limits.

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

Rhombus Systems

$149/year
  • Professional$149/year
    • Per camera per year
    • Cloud console and management
    • On-camera storage retention
  • Enterprise$199/year
    • Per camera per year
    • Everything in Professional
    • Flexible cloud archiving options
  • Cloud archiving$undefined/year
    • Priced separately by retention period and stream count
    • Multisensor cameras cost several times a single sensor camera
    • Long retention on multisensor models can reach five figures per camera

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 Rhombus Systems if

  • You need on-camera storage.
  • You work on Web, iOS, Android.
  • You also want no nvr or server.
Rhombus Systems review

Questions people ask

Is Mimecast or Rhombus Systems better?
Neither clearly leads. Mimecast starts at $4/month and Rhombus Systems at $149/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or Rhombus Systems?
Mimecast starts at $4/month and Rhombus Systems at $149/year.
Does Mimecast or Rhombus Systems run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. Rhombus Systems runs on Web, iOS, Android.
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 Rhombus Systems is typically brought in for.
What can Mimecast do that Rhombus Systems cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. Rhombus Systems covers On-camera storage, No NVR or server, AI search, Access control.

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
Rhombus Systems: Do I need an NVR or a server?

No. Cameras record on board and connect directly to the cloud console, which is the main operational reason organisations pick it.

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
Rhombus Systems: What does the licence cost?

Roughly $149 per camera per year for Professional and about $199 for Enterprise, typically sold in one, three, five or ten year terms.

Rhombus Systems: Is cloud storage included?

No. On-camera storage is the default. Cloud archiving is a separate charge priced by retention duration and number of streams.

Rhombus Systems: Can I use my existing cameras?

No. The platform works only with Rhombus hardware, which is the trade-off for the zero-server architecture.

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