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Government · head to head

CitizenLab vs Cosign

CitizenLab logo

CitizenLab

Government

Digital Democracy Platform

From
$500/month
Free plan
No
Full reviewWebsite
Cosign logo

Cosign

Cybersecurity

Signs and verifies container images and artifacts, with or without managing keys

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Cosign has a free tier, so it costs nothing to try first.
  • Each has a real cost: CitizenLab citizenLab has rebranded to Go Vocal and the product now sells under govocal.com; Cosign keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.
  • They diverge on capability: CitizenLab covers Participatory Budgeting, Cosign covers Keyless signing.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which CitizenLab and Cosign actually diverge.

Attributes where CitizenLab and Cosign differ
AttributeCitizenLabCosign
Starting price$500/monthFree
Pricing modelsubscriptionOpen source, no licence fee
Free tierNoYes
PlatformsWeb, Ios, AndroidmacOS, Linux, Windows, Docker
CategoryGovernmentCybersecurity
Founded2015Unknown

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 CitizenLab

  • Participatory Budgeting
  • Idea Management
  • Online Consultations
  • Surveys & Polls
  • AI-powered Analysis
  • Single Sign-On
  • Open Data Portals
  • GIS Systems

Only in Cosign

  • Keyless signing
  • Key and KMS signing
  • Registry-native storage
  • In-toto attestations
  • Offline verification
  • Trusted root and signing config

What people use each for

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

CitizenLab

  • Running community consultation and participatory budgeting for a citynot Cosign
  • Collecting resident input through surveys, ideation, mapping and votingnot Cosign
  • Centralising engagement data across multiple municipal departmentsnot Cosign

Cosign

  • Signing container images in a build pipeline without managing long-lived private keysnot CitizenLab
  • Attaching a signed bill of materials to a release so consumers can verify its provenancenot CitizenLab
  • Meeting a customer or regulatory requirement for signed artifactsnot CitizenLab
  • Verifying third-party images before they enter an internal registrynot CitizenLab

Where each one falls short

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

CitizenLab

  • CitizenLab has rebranded to Go Vocal and the product now sells under govocal.com
  • No prices are published on the plans page; every tier requires scheduling a demo
  • The Essential plan allows only 1 active project and 1 admin seat, with no project manager seats
  • Standard is limited to 4 admin seats and 5 project manager seats, and Premium to 8 admin seats and 25 project manager seats
  • Standard restricts Sensemaking to Light, capped at 30 inputs; auto-insights require Premium
  • The integrated Konveio document annotation and Echo blended engagement methods are excluded from Standard and require Premium
  • Auto-translation on Premium is limited to 3 languages
  • Custom fonts and other premium styling options are Premium only
  • Priority support is Premium only
  • Plans are split by population band, with separate ladders for cities under and over 100K population

Cosign

  • Keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.
  • A signature proves who signed, never whether they should have. The documentation is explicit that Sigstore cannot determine authorisation, so every consumer must write and maintain their own identity and issuer policy or verification means nothing.
  • Nothing is enforced without an admission controller. Signing changes what you can prove, not what runs, and the official policy controller has a small maintainer base for a component sitting in a cluster admission path.
  • Upgrades break pipelines. Version 3 changed defaults, version 4 is announced as removing legacy functionality and roughly half the command line flags, and two official client libraries still lacked support for the new log format as of mid 2026.
  • Signatures do not expire. An artifact signed before a maintainer account was compromised and one signed after are indistinguishable unless somebody is actively monitoring the transparency log, and almost nobody is.

Pricing, plan by plan

CitizenLab

$500/month
  • Government$500/month
    • Participatory Budgeting
    • Idea Collection
    • Surveys

Cosign

Free
  • CosignFree
    • Apache-2.0
    • Public Sigstore infrastructure free to use
    • No usage limits published

Which should you pick?

Choose CitizenLab if

  • You need participatory budgeting.
  • You work on Web, Ios, Android.
  • You also want idea management.
CitizenLab review

Choose Cosign if

  • You need keyless signing.
  • You want to start without paying.
  • You work on macOS, Linux, Windows, Docker.
  • You also want key and kms signing.
Cosign review

Questions people ask

Is CitizenLab or Cosign better?
Neither clearly leads. CitizenLab starts at $500/month and Cosign at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CitizenLab or Cosign?
Cosign has a free tier; the other does not. Paid plans start at $500/month for CitizenLab and Free for Cosign.
Does CitizenLab or Cosign run on more platforms?
CitizenLab runs on Web, Ios, Android. Cosign runs on macOS, Linux, Windows, Docker.
Can I use Cosign for free?
Yes. Cosign has a free tier, so you can try it without paying. CitizenLab starts at $500/month.
What is CitizenLab best used for?
CitizenLab is most often used for running community consultation and participatory budgeting for a city, collecting resident input through surveys, ideation, mapping and voting, centralising engagement data across multiple municipal departments. Of those, running community consultation and participatory budgeting for a city and collecting resident input through surveys, ideation, mapping and voting are not what Cosign is typically brought in for.
What can CitizenLab do that Cosign cannot?
CitizenLab covers Participatory Budgeting, Idea Management, Online Consultations, Surveys & Polls. Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations.

Answered from the vendors’ own pages

CitizenLab: How many projects can Essential tier teams manage?

The Essential tier is designed for teams starting small and is limited to 1 active project with 1 admin seat and no project manager seats.

Source
Cosign: Does Cosign tell me if an image is vulnerable?

No. It has no vulnerability knowledge whatsoever. It can carry an SBOM as a signed attestation but never reads it. Pair it with a scanner.

CitizenLab: How many projects can Standard and Premium tiers manage?

Both Standard and Premium tiers support unlimited projects. Standard includes 4 admin seats and 5 project manager seats, while Premium includes 8 admin seats and 25 project manager seats.

Source
Cosign: Is signing alone enough?

No. Verification is a command somebody runs. Without an admission controller enforcing it, an unsigned image still runs.

CitizenLab: Does Enterprise tier have any user seat limits?

No, the Enterprise tier is designed for organizations aiming to embed engagement deeply within their infrastructure and includes unlimited admin seats and project managers.

Source
Cosign: What does a bare cosign verify actually prove?

Very little. Without a pinned certificate identity and OIDC issuer, it accepts a valid signature from any identity at all.

CitizenLab: What are the specific pricing amounts for each tier?

Specific pricing amounts are not disclosed on the plans page. The company directs interested organizations to talk to their team for personalized pricing offers.

Source
Cosign: What is the risk of keyless signing?

Your OIDC provider becomes the root of trust. Compromise of that account yields genuine, verifiable signatures, so account security is the control that matters.

Cosign: Should we expect breaking changes?

Yes. Version 4 is announced to remove roughly half the flags, and a post-quantum migration is named as a further breaking change after that.

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