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Cybersecurity · head to head

ExpressVPN vs Sigstore

ExpressVPN logo

ExpressVPN

Cybersecurity

Consumer VPN registered in the British Virgin Islands, owned by Kape Technologies since 2021, with repeated third-party audits.

From
$6.67/month
Rated
-
Full reviewWebsite
Sigstore logo

Sigstore

Cybersecurity

Free public signing and transparency infrastructure for open source artifacts

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Sigstore has a free tier, so it costs nothing to try first.
  • Each has a real cost: ExpressVPN ownership passed in 2021 to Kape Technologies, formerly Crossrider, whose earlier browser extension platform was widely used to distribute adware, and Kape also owns VPN review publications, so nominally independent rankings a buyer consults may originate inside the same corporate group.; 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: ExpressVPN covers TrustedServer, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which ExpressVPN and Sigstore actually diverge.

Attributes where ExpressVPN and Sigstore differ
AttributeExpressVPNSigstore
Starting price$6.67/monthFree
Pricing modelsubscriptionOpen source, public instance free to use
Free tierNoYes
PlatformsWeb, Desktop, Mobile, ApiWeb, Linux, macOS, Windows, Self-hosted
Founded2009Unknown

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 ExpressVPN

  • TrustedServer
  • Lightway protocol
  • Repeated external audits
  • Network Lock
  • Split tunnelling
  • Aircove router
  • Threat Manager
  • Private DNS

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.

ExpressVPN

  • A buyer who wants the largest available body of published third-party audit evidence behind a no-logging claimnot Sigstore
  • Households wanting whole-network coverage through a router without configuring firmware by handnot Sigstore
  • Frequent travellers who need connections that survive switching between mobile data and hotel Wi-Fi without droppingnot Sigstore
  • Non-technical users who want the kill switch and DNS handled correctly by default rather than configurednot Sigstore

Sigstore

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

Where each one falls short

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

ExpressVPN

  • Ownership passed in 2021 to Kape Technologies, formerly Crossrider, whose earlier browser extension platform was widely used to distribute adware, and Kape also owns VPN review publications, so nominally independent rankings a buyer consults may originate inside the same corporate group.
  • In 2021 the company's then chief information officer was named in a United States Department of Justice deferred prosecution agreement over work for a foreign government's offensive cyber programme and remained in post, which is a governance fact that sits uncomfortably alongside a product sold entirely on trust.
  • Audits are point-in-time engagements against an agreed scope, so they establish that specified servers and code matched the stated policy when examined, not that the infrastructure behaves the same way today or under different ownership.
  • Several country locations are virtual, meaning the hardware physically sits elsewhere, and after India's 2022 directive requiring VPN providers to retain subscriber data ExpressVPN withdrew its Indian servers, so an Indian connection is routed through hardware in another country, which matters if you need genuine in-country routing.
  • There is no port forwarding and no dedicated IP option, so seeding torrents, hosting a service behind the tunnel and any inbound connection do not work, and users who need those capabilities have to use a different provider.

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

ExpressVPN

$6.67/month
  • 1 Month$12.95/month
    • 8 devices
    • 94 countries
    • Unlimited bandwidth
  • 12 Months$6.67/month
    • All features
    • 3 months free
    • Best value
  • 6 Months$9.99/month
    • All features
    • 30-day guarantee

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 ExpressVPN if

  • You need trustedserver.
  • You work on Web, Desktop, Mobile, Api.
  • You also want lightway protocol.
ExpressVPN 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 ExpressVPN or Sigstore better?
Neither clearly leads. ExpressVPN starts at $6.67/month and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ExpressVPN or Sigstore?
Sigstore has a free tier; the other does not. Paid plans start at $6.67/month for ExpressVPN and Free for Sigstore.
Does ExpressVPN or Sigstore run on more platforms?
ExpressVPN runs on Web, Desktop, Mobile, Api. 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. ExpressVPN starts at $6.67/month.
What is ExpressVPN best used for?
ExpressVPN is most often used for a buyer who wants the largest available body of published third-party audit evidence behind a no-logging claim, households wanting whole-network coverage through a router without configuring firmware by hand, frequent travellers who need connections that survive switching between mobile data and hotel wi-fi without dropping, non-technical users who want the kill switch and dns handled correctly by default rather than configured. Of those, a buyer who wants the largest available body of published third-party audit evidence behind a no-logging claim and households wanting whole-network coverage through a router without configuring firmware by hand are not what Sigstore is typically brought in for.
What can ExpressVPN do that Sigstore cannot?
ExpressVPN covers TrustedServer, Lightway protocol, Repeated external audits, Network Lock. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

ExpressVPN: Who owns ExpressVPN?

Kape Technologies, which acquired it in 2021. Kape was previously named Crossrider and also owns CyberGhost, Private Internet Access and Zenmate, along with the review sites vpnMentor and Wizcase.

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.

ExpressVPN: Is the British Virgin Islands jurisdiction actually useful?

It has no mandatory data retention law and is outside the Five, Nine and Fourteen Eyes arrangements, which is the reason it was chosen. It also means limited practical legal recourse for a subscriber, so the jurisdiction protects the company's ability to hold no data rather than protecting you against the company.

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.

ExpressVPN: Has the no-logs claim been audited?

Yes, repeatedly. PwC and KPMG have examined the no-logging claims and the TrustedServer architecture, and Cure53 has reviewed the applications, extension and protocol. The reports are published.

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.

ExpressVPN: Can I torrent with it?

Yes, peer-to-peer traffic is permitted on the network, but there is no port forwarding, so you can download but you cannot accept inbound connections and seeding performance suffers as a result.

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.

ExpressVPN: Does it work in China or similar networks?

Sometimes, using obfuscated connection modes, but no provider can guarantee this and availability changes without warning. Treat it as best effort and have a fallback.

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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