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Government · head to head

CivicPlus vs Sigstore

CivicPlus logo

CivicPlus

Government

Civic Engagement Technology

From
On request
Free plan
No
Full reviewWebsite
Sigstore logo

Sigstore

Cybersecurity

Free public signing and transparency infrastructure for open source artifacts

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Sigstore has a free tier, so it costs nothing to try first.
  • Each has a real cost: CivicPlus no public pricing tiers, rates, or cost information available; Sigstore the security model depends on somebody watching the log. The documentation states that compromise of an identity provider or of Fulcio itself is detectable only if third parties monitor the transparency log, the monitoring tool is a community-tier rather than core project, and almost no consumer runs one.
  • They diverge on capability: CivicPlus covers Government Websites, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which CivicPlus and Sigstore actually diverge.

Attributes where CivicPlus and Sigstore differ
AttributeCivicPlusSigstore
Starting priceOn requestFree
Pricing modelquoteOpen source, public instance free to use
Free tierNoYes
PlatformsWeb, Ios, AndroidWeb, Linux, macOS, Windows, Self-hosted
CategoryGovernmentCybersecurity
Founded2001Unknown

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 CivicPlus

  • Government Websites
  • Agenda Management
  • Mass Notifications
  • Online Forms
  • Social Media Management
  • Facebook
  • Twitter
  • GovDelivery

Only in Sigstore

  • Fulcio
  • Rekor
  • Keyless signing
  • Multi-language clients
  • Timestamp authority
  • Neutral governance

What people use each for

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

CivicPlus

  • Municipal government softwarenot Sigstore
  • City website managementnot Sigstore
  • Recreation management for local governmentnot Sigstore

Sigstore

  • Open source projects signing releases without running a certificate authoritynot CivicPlus
  • Organisations meeting a signed-artifact requirement without buying a signing productnot CivicPlus
  • Publishing provenance that a consumer can verify independently of younot CivicPlus
  • Self-hosting the same components where a public log is unacceptablenot CivicPlus

Where each one falls short

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

CivicPlus

  • No public pricing tiers, rates, or cost information available
  • Requires direct contact with sales team for pricing estimates
  • No free trial or freemium tier option listed

Sigstore

  • The security model depends on somebody watching the log. The documentation states that compromise of an identity provider or of Fulcio itself is detectable only if third parties monitor the transparency log, the monitoring tool is a community-tier rather than core project, and almost no consumer runs one.
  • It is a 99.5 percent objective with no service level agreement, which permits several hours of downtime a month and offers no remedy. A pipeline that signs on every build has taken a hard dependency on a free service with no contract behind it.
  • Log scale is a live engineering problem rather than a theoretical one. The active shard holds billions of entries, the log has already been sharded twice, and sharding version 1 requires stopping traffic, which is why a replacement was built.
  • Ten-minute certificates make trust depend on log availability. Verifying an older signature relies on the log entry proving it was made inside that window, so a lost or unreachable entry can render a valid artifact unverifiable.
  • Migration debt is substantial and ongoing. Version 2 of the log is generally available but not the public default, the signing client has an announced breaking release ahead, some official clients lag the new log format, and a post-quantum migration is named as the next break after that.

Pricing, plan by plan

CivicPlus

On request

No published plan breakdown. See the CivicPlus review.

Sigstore

Free
  • Public good instanceFree
    • Free to everyone with no contract
    • 99.5 percent availability objective, not an agreement
    • 100KB cap per attestation upload
  • Self-hostedFree
    • Apache-2.0
    • Run your own Fulcio and Rekor
    • Rekor v2 available for self-hosters

Which should you pick?

Choose CivicPlus if

  • You need government websites.
  • You work on Web, Ios, Android.
  • You also want agenda management.
CivicPlus review

Choose Sigstore if

  • You need fulcio.
  • You want to start without paying.
  • You work on Web, Linux, macOS, Windows, Self-hosted.
  • You also want rekor.
Sigstore review

Questions people ask

Is CivicPlus or Sigstore better?
Neither clearly leads. CivicPlus starts at On request and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CivicPlus or Sigstore?
Sigstore has a free tier; the other does not. Paid plans start at On request for CivicPlus and Free for Sigstore.
Does CivicPlus or Sigstore run on more platforms?
CivicPlus runs on Web, Ios, Android. Sigstore runs on Web, Linux, macOS, Windows, Self-hosted.
Can I use Sigstore for free?
Yes. Sigstore has a free tier, so you can try it without paying. CivicPlus starts at On request.
What is CivicPlus best used for?
CivicPlus is most often used for municipal government software, city website management, recreation management for local government. Of those, municipal government software and city website management are not what Sigstore is typically brought in for.
What can CivicPlus do that Sigstore cannot?
CivicPlus covers Government Websites, Agenda Management, Mass Notifications, Online Forms. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

CivicPlus: What does CivicPlus cost?

CivicPlus uses a custom pricing model with no published rates. Interested organizations must fill out a form and speak with a technology strategist to receive a pricing estimate based on specific needs.

Source
Sigstore: Is the public instance really free?

Yes, with no contract and no paid tier. That is also the weakness: a 99.5 percent objective with no agreement, no remedy and support through Slack.

CivicPlus: Does CivicPlus offer different pricing for different sized municipalities?

Yes, CivicPlus pricing is customized based on organization size and the specific products selected from their portfolio (websites, recreation management, utility billing, etc.).

Source
Sigstore: Has the public log moved to Rekor v2?

No. Version 2 reached general availability in October 2025 and self-hosters can use it, but the public instance still defaults to version 1 and the project has said it will for the foreseeable future.

CivicPlus: How do I request pricing from CivicPlus?

Visit civicplus.com/pricing to fill out a form or call 888-228-2233 to speak with a technology strategist about your municipality's requirements and receive a custom estimate.

Source
Sigstore: Does Sigstore make my dependencies safe?

No, and this is a category error worth avoiding. It tells you who published something. It has no knowledge of what the artifact contains or whether it is vulnerable.

Sigstore: What are the rate limits?

Not published. Only the 100KB cap per attestation upload is documented, so do not design a high-volume pipeline around assumed throughput.

Sigstore: Should we self-host it?

If a public record of every signature is unacceptable, or if a free service with no agreement cannot sit in your build path, then yes. Otherwise the public instance is what most projects use.

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