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Cybersecurity · head to head

Sigstore vs Trulioo

Sigstore logo

Sigstore

Cybersecurity

Free public signing and transparency infrastructure for open source artifacts

From
Free
Rated
-
Full reviewWebsite
Trulioo logo

Trulioo

Cybersecurity

Identity and business verification against national data sources in nearly 200 countries

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Sigstore has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Trulioo per-check rates vary widely by country and data source, so a blended average from the sales conversation misleads if your volume concentrates in expensive markets.
  • They diverge on capability: Sigstore covers Fulcio, Trulioo covers Person match.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Sigstore and Trulioo actually diverge.

Attributes where Sigstore and Trulioo differ
AttributeSigstoreTrulioo
Starting priceFreeOn request
Pricing modelOpen source, public instance free to usequote
Free tierYesNo
PlatformsWeb, Linux, macOS, Windows, Self-hostedWeb, API

Identical on both: user rating (Not yet rated), category (Cybersecurity).

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 Sigstore

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

Only in Trulioo

  • Person match
  • Business verification
  • Watchlist screening
  • Document and biometric
  • Single API
  • Workflow orchestration

What people use each for

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

Sigstore

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

Trulioo

  • A payments firm onboarding across dozens of countries where building a data-source integration per market is impracticalnot Sigstore
  • A marketplace verifying business sellers and needing beneficial ownership rather than just a company numbernot Sigstore
  • A fintech wanting a cheap frictionless first check and reserving document scanning for the minority that fail itnot Sigstore
  • A bank expanding into a market where document upload completion rates are poor and registry matching works betternot Sigstore

Where each one falls short

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

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.

Trulioo

  • Per-check rates vary widely by country and data source, so a blended average from the sales conversation misleads if your volume concentrates in expensive markets.
  • Coverage breadth is real but depth is uneven; a country on the map may be served by one thin source with low match rates, which you only discover in a live test.
  • You are charged per query including no-match results, so a market with poor source coverage burns budget producing nothing usable.
  • Because it aggregates third-party data, data residency and consent handling depend on the underlying provider terms, which complicates GDPR assessments in some jurisdictions.
  • Document and biometric capability is competent but not the strongest in the market, so buyers whose primary need is document fraud detection usually pair it with a specialist.

Pricing, plan by plan

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

Trulioo

On request
  • Trulioo Platform$undefined/year
    • Priced per check with rates varying by country and data source
    • Person, business and watchlist checks charged separately
    • Volume commitment negotiated annually

Which should you pick?

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

Choose Trulioo if

  • You need person match.
  • You work on Web, API.
  • You also want business verification.
Trulioo review

Questions people ask

Is Sigstore or Trulioo better?
Neither clearly leads. Sigstore starts at Free and Trulioo at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Sigstore or Trulioo?
Sigstore has a free tier; the other does not. Paid plans start at Free for Sigstore and On request for Trulioo.
Does Sigstore or Trulioo run on more platforms?
Sigstore runs on Web, Linux, macOS, Windows, Self-hosted. Trulioo runs on Web, API.
Can I use Sigstore for free?
Yes. Sigstore has a free tier, so you can try it without paying. Trulioo starts at On request.
What is Sigstore best used for?
Sigstore is most often used for open source projects signing releases without running a certificate authority, organisations meeting a signed-artifact requirement without buying a signing product, publishing provenance that a consumer can verify independently of you, self-hosting the same components where a public log is unacceptable. Of those, open source projects signing releases without running a certificate authority and organisations meeting a signed-artifact requirement without buying a signing product are not what Trulioo is typically brought in for.
What can Sigstore do that Trulioo cannot?
Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients. Trulioo covers Person match, Business verification, Watchlist screening, Document and biometric.

Answered from the vendors’ own pages

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.

Trulioo: Does it need a document?

Not for the core product. Data-source matching uses name, address and date of birth, which is why completion rates are higher than document flows.

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.

Trulioo: Are unmatched queries billed?

Yes, in general you pay per query rather than per successful match. Negotiate this explicitly if you are entering markets with thin coverage.

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.

Trulioo: Can it verify companies as well as people?

Yes. Business verification including beneficial ownership is a distinct product line and a common reason to choose Trulioo over document-first vendors.

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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