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Cybersecurity · head to head

Syft vs Zencity

Syft logo

Syft

Cybersecurity

Generates a software bill of materials from images, filesystems and archives

From
Free
Free plan
Yes
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

  • Only Syft has a free tier, so it costs nothing to try first.
  • Each has a real cost: Syft lockfile parsing can drop packages silently. An open issue filed in August 2026 reports the yarn v1 cataloguer returning 118 of 745 packages with no error raised, which means a complete bill of materials and an 84 percent incomplete one look identical to the caller.; 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: Syft covers Multi-format output, Zencity covers Organic social listening.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Syft and Zencity actually diverge.

Attributes where Syft and Zencity differ
AttributeSyftZencity
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsmacOS, Linux, Windows, DockerWeb
CategoryCybersecurityGovernment

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 Syft

  • Multi-format output
  • Broad ecosystem coverage
  • Binary classifiers
  • In-toto attestations
  • Library and CLI
  • Pairs with Grype

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.

Syft

  • Producing a bill of materials for a customer or regulator that requires onenot Zencity
  • Feeding an inventory into a vulnerability scanner rather than scanning images directlynot Zencity
  • Recording what shipped in a build so a future disclosure can be answered quicklynot Zencity
  • Public sector work where an SBOM is a contractual deliverablenot Zencity

Zencity

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

Where each one falls short

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

Syft

  • Lockfile parsing can drop packages silently. An open issue filed in August 2026 reports the yarn v1 cataloguer returning 118 of 745 packages with no error raised, which means a complete bill of materials and an 84 percent incomplete one look identical to the caller.
  • Fidelity varies sharply by ecosystem. Conan for C and C++, Haskell and Terraform get cataloguer support with no licence data, no dependency relationships and no file ownership, so a C and C++ shop gets the least from it.
  • Binary classification yields no licence or dependency metadata, and vendored or statically linked code is exactly where supply chain risk hides, so the blind spot and the risk overlap.
  • Incorrect CPE values and CPE collisions are recorded as open issues, and since Grype matches on CPE and PURL, an inventory error becomes a false negative in the security report downstream.
  • An inventory is not a risk assessment. Even a perfect bill of materials says a vulnerable version is present, never that the vulnerable function is called, and the triage burden lands entirely on the reader.

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

Syft

Free
  • SyftFree
    • Apache-2.0
    • No usage limits
    • Community support
  • Anchore Enterprise$undefined/year
    • Policy enforcement and reporting
    • Federal and commercial tiers
    • Pricing not published, quoted on request

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 Syft if

  • You need multi-format output.
  • You want to start without paying.
  • You work on macOS, Linux, Windows, Docker.
  • You also want broad ecosystem coverage.
Syft review

Choose Zencity if

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

Questions people ask

Is Syft or Zencity better?
Neither clearly leads. Syft starts at Free and Zencity at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Syft or Zencity?
Syft has a free tier; the other does not. Paid plans start at Free for Syft and On request for Zencity.
Does Syft or Zencity run on more platforms?
Syft runs on macOS, Linux, Windows, Docker. Zencity runs on Web.
Can I use Syft for free?
Yes. Syft has a free tier, so you can try it without paying. Zencity starts at On request.
What is Syft best used for?
Syft is most often used for producing a bill of materials for a customer or regulator that requires one, feeding an inventory into a vulnerability scanner rather than scanning images directly, recording what shipped in a build so a future disclosure can be answered quickly, public sector work where an sbom is a contractual deliverable. Of those, producing a bill of materials for a customer or regulator that requires one and feeding an inventory into a vulnerability scanner rather than scanning images directly are not what Zencity is typically brought in for.
What can Syft do that Zencity cannot?
Syft covers Multi-format output, Broad ecosystem coverage, Binary classifiers, In-toto attestations. Zencity covers Organic social listening, Representative surveys, Community trust surveys, Topic and sentiment analysis.

Answered from the vendors’ own pages

Syft: Does Syft find vulnerabilities?

No. It produces an inventory. Grype, from the same company, matches that inventory against vulnerability feeds. They are separate tools and the distinction is frequently lost.

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.

Syft: Does anything in the Anchore stack do reachability analysis?

No. Neither Syft, Grype nor the commercial Anchore platform performs call graph or reachability analysis, so none of them tells you whether a vulnerable code path is actually invoked.

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.

Syft: Is it a CNCF or OpenSSF project?

No. It is single-vendor open source owned by Anchore, with no foundation governance. That is a different licence risk profile from Sigstore.

Zencity: What did Zencity acquire?

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

Syft: What does Anchore Enterprise cost?

Not published. The pricing page is contact-sales only, with named but unpriced commercial and federal tiers.

Zencity: Can residents find out what our city bought?

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

Syft: How do I know my SBOM is complete?

You largely cannot, which is the honest answer. Silent partial parsing is a known open defect, so a bill of materials used for compliance should be spot-checked against a known dependency list.

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