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Government · head to head

Polco vs Sigstore

Polco logo

Polco

Government

Civic Engagement and Polling Platform

From
$300/month
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: Polco interface has a formal, academic tone compared to modern civic engagement platforms; 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: Polco covers Scientific Surveys, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Polco and Sigstore actually diverge.

Attributes where Polco and Sigstore differ
AttributePolcoSigstore
Starting price$300/monthFree
Pricing modelsubscriptionOpen source, public instance free to use
Free tierNoYes
PlatformsWeb, Ios, AndroidWeb, Linux, macOS, Windows, Self-hosted
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 Polco

  • Scientific Surveys
  • Live Polling
  • Community Benchmarking
  • Priority-Based Budgeting
  • Demographic Analysis
  • NRC Surveys
  • ArcGIS
  • Social Media

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.

Polco

  • Citizen Servicesnot Sigstore
  • Records Managementnot Sigstore
  • Public Safetynot Sigstore
  • Civic Engagementnot Sigstore

Sigstore

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

Where each one falls short

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

Polco

  • Interface has a formal, academic tone compared to modern civic engagement platforms
  • Emphasizes surveys and benchmarking over open discussion forums and idea boards
  • Pricing is custom quote-based without transparent pricing on the website

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

Polco

$300/month
  • Community Engagement$300/month
    • Community Surveys
    • Live Polling
    • Benchmarking

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 Polco if

  • You need scientific surveys.
  • You work on Web, Ios, Android.
  • You also want live polling.
Polco 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 Polco or Sigstore better?
Neither clearly leads. Polco starts at $300/month and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Polco or Sigstore?
Sigstore has a free tier; the other does not. Paid plans start at $300/month for Polco and Free for Sigstore.
Does Polco or Sigstore run on more platforms?
Polco 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. Polco starts at $300/month.
What is Polco best used for?
Polco is most often used for citizen services, records management, public safety, civic engagement. Of those, citizen services and records management are not what Sigstore is typically brought in for.
What can Polco do that Sigstore cannot?
Polco covers Scientific Surveys, Live Polling, Community Benchmarking, Priority-Based Budgeting. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

Polco: How does Polco ensure survey data quality?

Polco uses scientific survey methodology through the National Research Center, with pre-tested survey questions and verification that participants live in the surveyed area to eliminate outside interference and bad-faith responses.

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.

Polco: What's the difference between Polco and open discussion platforms?

Polco emphasizes scientific surveys and benchmarking over open forums or suggestion boards, prioritizing rigorous data collection for policy decisions over broad community brainstorming.

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.

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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