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Cybersecurity · head to head

Aikido vs Sigstore

Aikido logo

Aikido

Cybersecurity

Unified security platform automating vulnerability detection and fixing across development

From
Free
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

  • Each has a real cost: Aikido free plan includes fair-usage limits on repos and container images; 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: Aikido covers Static Application Security Testing (SAST), Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Aikido and Sigstore actually diverge.

Attributes where Aikido and Sigstore differ
AttributeAikidoSigstore
Pricing modelSubscription with free tierOpen source, public instance free to use
PlatformsWeb, CI/CD, IDEWeb, Linux, macOS, Windows, Self-hosted
Founded2022Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Aikido

  • Static Application Security Testing (SAST)
  • Software Composition Analysis (SCA)
  • AutoFix
  • Secrets detection
  • Cloud Security Posture Management
  • AI-powered penetration testing
  • Device protection
  • False positive reduction

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.

Aikido

  • Developer-friendly security integrated into PR workflowsnot Sigstore
  • Automated vulnerability remediation with context-aware alertsnot Sigstore
  • Consolidation of fragmented security tools across development lifecyclenot Sigstore
  • Cloud infrastructure security posture monitoringnot Sigstore
  • Supply chain attack prevention and malware detectionnot Sigstore

Sigstore

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

Where each one falls short

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

Aikido

  • Free plan includes fair-usage limits on repos and container images
  • Pricing increases significantly with user and repository scale
  • Advanced features like penetration testing and VM scanning limited to higher tiers
  • Device protection limited to Development environments only
  • Requires multiple plan tiers for full platform coverage

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

Aikido

Free
  • DeveloperFree
    • Up to 2 users
    • Dependency scanning (SCA)
    • SAST and AI SAST
  • Pro$600/month
    • Up to 10 users
    • All Basic features
    • On-premise scanning
  • Advanced$600/month
    • Up to 10 users
    • All Pro features
    • Broker for internal apps
  • Enterprise$null/custom
    • Custom pricing for tailored modules
    • Dedicated account management
    • Custom SLAs

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 Aikido if

  • You need static application security testing (sast).
  • You want to start without paying.
  • You work on Web, CI/CD, IDE.
  • You also want software composition analysis (sca).
Aikido 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 Aikido or Sigstore better?
Neither clearly leads. Aikido starts at Free and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aikido or Sigstore?
Aikido starts at Free and Sigstore at Free.
Does Aikido or Sigstore run on more platforms?
Aikido runs on Web, CI/CD, IDE. Sigstore runs on Web, Linux, macOS, Windows, Self-hosted.
Can I use Aikido for free?
Both have a free tier, so you can try either at no cost before committing.
What is Aikido best used for?
Aikido is most often used for developer-friendly security integrated into pr workflows, automated vulnerability remediation with context-aware alerts, consolidation of fragmented security tools across development lifecycle, cloud infrastructure security posture monitoring. Of those, developer-friendly security integrated into pr workflows and automated vulnerability remediation with context-aware alerts are not what Sigstore is typically brought in for.
What can Aikido do that Sigstore cannot?
Aikido covers Static Application Security Testing (SAST), Software Composition Analysis (SCA), AutoFix, Secrets detection. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

Aikido: What is included in Aikido's free Developer plan?

The free Developer plan includes up to 2 users with SAST, SCA, secrets detection, cloud scanning, and license risk detection. Fair-usage limits apply: 10 repos, 2 container images, 1 domain, and 1 cloud account.

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.

Aikido: What is AutoFix and how does it work?

AutoFix is Aikido's automated vulnerability remediation feature that identifies vulnerabilities and suggests or applies specific code fixes automatically, reducing manual remediation effort.

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.

Aikido: How many false positives does Aikido reduce?

Aikido reduces false positives by 99%, using AI-powered context awareness to filter noise and focus on vulnerabilities that present real business risk.

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.

Aikido: What integrations does Aikido support?

Aikido integrates with Jira, Linear, Slack, Teams, GitHub, GitLab, and other popular development tools to fit into existing workflows.

Source
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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