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Developer Tools · head to head

GNAT Pro vs Signicat

GNAT Pro logo

GNAT Pro

Developer Tools

Software development environments and toolchains for Ada, C/C++ and Rust

From
On request
Free plan
No
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

  • Each has a real cost: GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes; 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.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which GNAT Pro and Signicat actually diverge.

Attributes where GNAT Pro and Signicat differ
AttributeGNAT ProSignicat
PlatformsWebWeb, iOS, Android
CategoryDeveloper ToolsCybersecurity

Identical on both: starting price (On request), pricing model (quote), free tier (No), 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 GNAT Pro

Nothing recorded that Signicat does not also cover.

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.

GNAT Pro

  • Building certified avionics software meeting DO-178B/C standardsnot Signicat
  • Developing automotive embedded systems with ISO-26262 compliancenot Signicat
  • Integrating Ada, C/C++, and Rust components in single codebasenot Signicat
  • Managing software supply chain vulnerabilities and SBOMsnot Signicat
  • Supporting long-lived software systems spanning decadesnot Signicat

Signicat

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

Where each one falls short

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

GNAT Pro

  • No pricing published on website; requires contacting AdaCore directly for quotes
  • Vendor indicates per-user, per-year subscription model but does not disclose specific costs

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

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

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 GNAT Pro if

Nothing in the data separates GNAT Pro from Signicat on the points above - pick on price and on how each one feels to use.

GNAT Pro 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 GNAT Pro or Signicat better?
Neither clearly leads. GNAT Pro starts at On request and Signicat at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Signicat?
GNAT Pro starts at On request and Signicat at On request.
Does GNAT Pro or Signicat run on more platforms?
GNAT Pro runs on Web. Signicat runs on Web, iOS, Android.
What is GNAT Pro best used for?
GNAT Pro is most often used for building certified avionics software meeting do-178b/c standards, developing automotive embedded systems with iso-26262 compliance, integrating ada, c/c++, and rust components in single codebase, managing software supply chain vulnerabilities and sboms. Of those, building certified avionics software meeting do-178b/c standards and developing automotive embedded systems with iso-26262 compliance are not what Signicat is typically brought in for.
What can GNAT Pro do that Signicat cannot?
Signicat covers eID scheme brokering, Qualified electronic signatures, Document verification, AML screening.

Answered from the vendors’ own pages

GNAT Pro: How much does GNAT Pro cost?

GNAT Pro pricing is not published on the website. Customers must request a pricing quote by contacting AdaCore directly or speaking with a GNAT Pro expert.

Source
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.

GNAT Pro: What is GNAT Pro licensing model?

GNAT Pro is sold on a per-user, per-year basis with no license locks. Customers can request pricing for their specific needs.

Source
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.

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.

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