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Developer Tools · head to head

GNAT Pro vs Veriff

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
Veriff logo

Veriff

Cybersecurity

Document and biometric identity verification with published per-check pricing

From
$0.8/verification
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; Veriff you pay per verification attempt, not per verified customer, so a confusing capture flow or poor lighting on mobile makes you pay two or three times for one onboarding.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where GNAT Pro and Veriff differ
AttributeGNAT ProVeriff
Starting priceOn request$0.8/verification
Pricing modelquotePer verification
PlatformsWebWeb, iOS, Android, API
CategoryDeveloper ToolsCybersecurity

Identical on both: 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 Veriff does not also cover.

Only in Veriff

  • Document verification
  • Biometric liveness
  • Hybrid review
  • Screening add-ons
  • Ongoing monitoring
  • Age estimation

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 Veriff
  • Developing automotive embedded systems with ISO-26262 compliancenot Veriff
  • Integrating Ada, C/C++, and Rust components in single codebasenot Veriff
  • Managing software supply chain vulnerabilities and SBOMsnot Veriff
  • Supporting long-lived software systems spanning decadesnot Veriff

Veriff

  • A crypto exchange that needs a published rate to model unit economics before committing to a KYC vendornot GNAT Pro
  • A marketplace verifying sellers in dozens of countries where a single document library matters more than depth in one marketnot GNAT Pro
  • A mobility platform running age and licence checks at signup with volumes too small for an enterprise contractnot GNAT Pro
  • A regulated firm wanting automated decisions by default but human review on borderline cases, priced explicitlynot 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

Veriff

  • You pay per verification attempt, not per verified customer, so a confusing capture flow or poor lighting on mobile makes you pay two or three times for one onboarding.
  • The headline $0.80 covers the document and selfie check only; adding PEP and sanctions screening at $0.64 nearly doubles the per-check cost, which is the number regulated buyers actually need.
  • Monthly minimums of $49 and $99 are low but real, so a product with seasonal signup patterns pays in quiet months.
  • Automated decision quality varies sharply by document type and issuing country, so a strong global average conceals weak performance in specific markets you may depend on.
  • Standard data retention is short and extending it to two years is a $0.30 per verification add-on, which matters because most financial regulators require records for five years or more.

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Veriff

$0.8/verification
  • Essential$0.8/verification
    • Fully automated decisions
    • $49 per month minimum
    • Documents from 230+ countries
  • Plus$1.39/verification
    • Hybrid automation with human review
    • $99 per month minimum
    • Enhanced fraud prevention for regulated industries
  • Enterprise$undefined/year
    • Volume pricing negotiated
    • Dedicated support and custom SLAs
    • Custom data retention and residency terms

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose Veriff if

  • You need document verification.
  • You work on Web, iOS, Android, API.
  • You also want biometric liveness.
Veriff review

Questions people ask

Is GNAT Pro or Veriff better?
Neither clearly leads. GNAT Pro starts at On request and Veriff at $0.8/verification, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Veriff?
GNAT Pro starts at On request and Veriff at $0.8/verification.
Does GNAT Pro or Veriff run on more platforms?
GNAT Pro runs on Web. Veriff runs on Web, iOS, Android, API.
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 Veriff is typically brought in for.
What can GNAT Pro do that Veriff cannot?
Veriff covers Document verification, Biometric liveness, Hybrid review, Screening add-ons.

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
Veriff: What does a verification actually cost?

$0.80 on Essential or $1.39 on Plus, before add-ons. Sanctions and PEP screening adds $0.64 and ongoing monitoring $0.09 per verification.

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
Veriff: Are failed attempts charged?

Sessions are charged, so retries by the same user generally cost you again. Ask for the exact billing definition of a session before signing.

Veriff: How long is data retained?

The default retention period is short and two-year extended retention is a paid add-on at $0.30 per verification, which is worth checking against your regulatory record-keeping obligations.

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