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Cybersecurity · head to head

Rhombus Systems vs Zencity

Rhombus Systems logo

Rhombus Systems

Cybersecurity

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

From
$149/year
Free plan
No
Full reviewWebsite
Zencity logo

Zencity

Government

Resident sentiment analysis combining organic social listening with representative surveys

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: 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.; Zencity social listening is structurally biased toward residents who post, so a city using the listening product without the survey product will consistently mistake volume for consensus.
  • They diverge on capability: Rhombus Systems covers On-camera storage, Zencity covers Organic social listening.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where Rhombus Systems and Zencity differ
AttributeRhombus SystemsZencity
Starting price$149/yearOn request
Pricing modelPer camera per year licence plus hardwarequote
PlatformsWeb, iOS, AndroidWeb
CategoryCybersecurityGovernment

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 Rhombus Systems

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

Only in Zencity

  • Organic social listening
  • Representative surveys
  • Community trust surveys
  • Topic and sentiment analysis
  • Service request integration
  • Leadership reporting

What people use each for

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

Rhombus Systems

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

Zencity

  • A city manager deciding whether a social media outcry reflects a representative viewnot Rhombus Systems
  • A police department measuring community trust with a sampled instrument rather than complaint volumenot Rhombus Systems
  • A communications team wanting early warning on a service issue before it reaches councilnot Rhombus Systems
  • A council needing resident input on a policy without running its own survey operationnot Rhombus Systems

Where each one falls short

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

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.

Zencity

  • Social listening is structurally biased toward residents who post, so a city using the listening product without the survey product will consistently mistake volume for consensus.
  • Government analysis of residents' public speech, particularly by police departments, has drawn civil liberties criticism and records request scrutiny in United States cities, and agencies need a public answer ready before signing.
  • Sentiment classification of local slang, sarcasm and non English posts is imperfect, and a misclassified theme presented in a leadership briefing can be acted on before anyone checks the underlying posts.
  • Survey sample sizes at neighbourhood level are often small, so the district level breakdowns that councils most want are the least reliable numbers in the report.
  • It reports on opinion without connecting to service delivery systems, so acting on a finding remains a separate manual process in whatever operational software the agency runs.

Pricing, plan by plan

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

Zencity

On request
  • Zencity$undefined/year
    • Quoted annually by population served and module scope
    • Survey programmes priced separately from the listening platform
    • Police community trust surveying sold as its own line

Which should you pick?

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

Choose Zencity if

  • You need organic social listening.
  • You also want representative surveys.
Zencity review

Questions people ask

Is Rhombus Systems or Zencity better?
Neither clearly leads. Rhombus Systems starts at $149/year and Zencity at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Rhombus Systems or Zencity?
Rhombus Systems starts at $149/year and Zencity at On request.
Does Rhombus Systems or Zencity run on more platforms?
Rhombus Systems runs on Web, iOS, Android. Zencity runs on Web.
What is Rhombus Systems best used for?
Rhombus Systems is most often used for a school district running video across dozens of buildings with no local it at each site, a clinic group needing door access and cameras in one console under a single audit trail, a logistics operator that wants to search for a specific vehicle across sites without scrubbing footage, an office estate replacing ageing nvrs where nobody remains who knows how to maintain them. Of those, a school district running video across dozens of buildings with no local it at each site and a clinic group needing door access and cameras in one console under a single audit trail are not what Zencity is typically brought in for.
What can Rhombus Systems do that Zencity cannot?
Rhombus Systems covers On-camera storage, No NVR or server, AI search, Access control. Zencity covers Organic social listening, Representative surveys, Community trust surveys, Topic and sentiment analysis.

Answered from the vendors’ own pages

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.

Zencity: Is this surveillance of residents?

It analyses publicly posted content and aggregated survey responses rather than private accounts, but the distinction has been contested publicly, especially for police use. Prepare an explanation before procurement.

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.

Zencity: Why pair listening with surveys?

Because the people who post are not representative of the people who live there. The gap between the two datasets is often the most useful output.

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.

Zencity: What did Zencity acquire?

Elucd, in 2021, which brought community trust survey methodology used with police departments.

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.

Zencity: Can residents find out what our city bought?

Yes. These are public contracts and several have been obtained and published through records requests.

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