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Cloud Native Buildpacks vs Signicat

Cloud Native Buildpacks logo

Cloud Native Buildpacks

Developer Tools

Specification and tooling that turns source code into OCI images without Dockerfiles

From
Free
Free plan
Yes
Full reviewWebsite
Signicat logo

Signicat

Cybersecurity

European digital identity hub connecting national eID schemes

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Cloud Native Buildpacks has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cloud Native Buildpacks the operational cost is real: you own builder images, base image refresh cadence and migrations between specification versions, which currently sit at Buildpack API 0.10 and Platform API 0.12 with published migration guides, so breaking changes are a recurring chore.; Signicat national eID scheme fees are passed through on top of Signicat's own charge, so a single-country business almost always pays less by integrating with the scheme directly.
  • They diverge on capability: Cloud Native Buildpacks covers Detect and build lifecycle, Signicat covers eID scheme brokering.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Cloud Native Buildpacks and Signicat actually diverge.

Attributes where Cloud Native Buildpacks and Signicat differ
AttributeCloud Native BuildpacksSignicat
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsLinux, macOS, Windows, CLI, Docker, KubernetesWeb, iOS, Android
CategoryDeveloper ToolsCybersecurity

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 Cloud Native Buildpacks

  • Detect and build lifecycle
  • Image rebasing
  • Reproducible layers
  • Builder images
  • Automatic SBOM output
  • pack CLI

Only in Signicat

  • eID scheme brokering
  • Qualified electronic signatures
  • Document verification
  • AML screening
  • Authentication
  • Digital onboarding flows
  • eIDAS compliance

What people use each for

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

Cloud Native Buildpacks

  • Patching a base image once and rebasing hundreds of application images rather than rebuilding and redeploying eachnot Signicat
  • Removing per-team Dockerfiles at an organisation where inconsistent base images have become an audit findingnot Signicat
  • Giving application teams a supported path to a hardened image without teaching every team container securitynot Signicat
  • Choosing a build system that a risk committee will accept because governance is vendor neutral rather than single vendornot Signicat

Signicat

  • A lender expanding from Norway into Sweden, Denmark and the Netherlands without four separate eID integrationsnot Cloud Native Buildpacks
  • An insurer needing eIDAS qualified signatures on policy documents that will hold up in a European courtnot Cloud Native Buildpacks
  • A bank that wants customers to onboard with their existing national bank ID rather than photographing a passportnot Cloud Native Buildpacks
  • A public sector body needing cross-border recognition of notified eID schemes under eIDASnot Cloud Native Buildpacks

Where each one falls short

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

Cloud Native Buildpacks

  • The operational cost is real: you own builder images, base image refresh cadence and migrations between specification versions, which currently sit at Buildpack API 0.10 and Platform API 0.12 with published migration guides, so breaking changes are a recurring chore.
  • A cold build with no warm cache is noticeably slower than a well layered Dockerfile, and because the cache lives in a cache image or volume, ephemeral continuous integration runners pay full price on every run unless you deliberately warm them.
  • Reproducibility depends on discipline rather than defaults, because buildpacks resolve runtime patch versions at build time unless you pin them and stability is only as good as the builder image tag you point at.
  • The specification is neutral but the buildpacks are not, and in practice you depend on Paketo, Heroku or Google, whose roadmaps, support levels and update cadences differ; CNCF also records contributing organisations down 12 per cent year on year.
  • Native dependencies, unusual monorepo layouts and non-standard project structures push you into writing custom buildpacks or extensions, which is a genuine engineering investment and not a configuration change.

Signicat

  • National eID scheme fees are passed through on top of Signicat's own charge, so a single-country business almost always pays less by integrating with the scheme directly.
  • Value is concentrated in Northern and Western Europe, and coverage in Southern and Eastern Europe is thinner, so a pan-European rollout still hits gaps requiring document fallback.
  • Pricing is per transaction and quoted, and because scheme rates vary by country the cost per onboarded customer differs materially between markets in ways that complicate unit economics.
  • Each eID scheme connection typically carries its own setup fee and approval process, so adding a country is a project with a lead time rather than a configuration change.
  • Availability is tied to the national schemes, meaning an outage at BankID or MitID stops your onboarding entirely and there is no vendor-side mitigation for it.

Pricing, plan by plan

Cloud Native Buildpacks

Free
  • Cloud Native BuildpacksFree
    • Apache-2.0, hosted by the CNCF
    • No commercial edition from the project itself
    • Commercial support only from vendors of specific buildpack distributions

Signicat

On request
  • Signicat Platform$undefined/year
    • Priced per transaction with national scheme fees passed through
    • Signature and verification products licensed separately
    • Setup fee per eID scheme connected

Which should you pick?

Choose Cloud Native Buildpacks if

  • You need detect and build lifecycle.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, CLI, Docker, Kubernetes.
  • You also want image rebasing.
Cloud Native Buildpacks review

Choose Signicat if

  • You need eid scheme brokering.
  • You work on Web, iOS, Android.
  • You also want qualified electronic signatures.
Signicat review

Questions people ask

Is Cloud Native Buildpacks or Signicat better?
Neither clearly leads. Cloud Native Buildpacks starts at Free and Signicat at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cloud Native Buildpacks or Signicat?
Cloud Native Buildpacks has a free tier; the other does not. Paid plans start at Free for Cloud Native Buildpacks and On request for Signicat.
Does Cloud Native Buildpacks or Signicat run on more platforms?
Cloud Native Buildpacks runs on Linux, macOS, Windows, CLI, Docker, Kubernetes. Signicat runs on Web, iOS, Android.
Can I use Cloud Native Buildpacks for free?
Yes. Cloud Native Buildpacks has a free tier, so you can try it without paying. Signicat starts at On request.
What is Cloud Native Buildpacks best used for?
Cloud Native Buildpacks is most often used for patching a base image once and rebasing hundreds of application images rather than rebuilding and redeploying each, removing per-team dockerfiles at an organisation where inconsistent base images have become an audit finding, giving application teams a supported path to a hardened image without teaching every team container security, choosing a build system that a risk committee will accept because governance is vendor neutral rather than single vendor. Of those, patching a base image once and rebasing hundreds of application images rather than rebuilding and redeploying each and removing per-team dockerfiles at an organisation where inconsistent base images have become an audit finding are not what Signicat is typically brought in for.
What can Cloud Native Buildpacks do that Signicat cannot?
Cloud Native Buildpacks covers Detect and build lifecycle, Image rebasing, Reproducible layers, Builder images. Signicat covers eID scheme brokering, Qualified electronic signatures, Document verification, AML screening.

Answered from the vendors’ own pages

Cloud Native Buildpacks: What does CNCF graduation actually change?

Nothing technically, but it signals audited governance, security review and multi-vendor maintenance, which is usually what a procurement or risk team needs before approving a build system.

Signicat: Is this an alternative to a document verification vendor?

Only where national eID exists. In markets with a mature bank ID scheme it is better; elsewhere you fall back to document checks, which Signicat also provides.

Cloud Native Buildpacks: How is this different from writing a Dockerfile?

Container build knowledge lives with the platform team in a builder image rather than in every repository, and rebasing lets you patch the runtime base of many images without rebuilding them.

Signicat: Do we still pay the eID schemes?

Yes. Scheme fees are passed through in addition to Signicat charges. Ask for the split when comparing to a direct integration.

Cloud Native Buildpacks: Does it cost anything?

No. The specification and tooling are Apache-2.0 and free. You pay only if you buy commercial support for a specific buildpack distribution from Broadcom, Heroku or Google.

Signicat: Are signatures legally qualified?

Signicat supports eIDAS qualified electronic signatures, which carry the highest legal standing in the EU, as well as advanced signatures.

Cloud Native Buildpacks: Is it slower than a Dockerfile?

On a cold build with no cache, yes. Warm builds are competitive, but continuous integration runners that start empty every time will feel the difference.

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