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GNAT Pro vs Very Good Security

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
Very Good Security logo

Very Good Security

Cybersecurity

Tokenisation proxy that keeps card and personal data out of your own systems and out of PCI scope

From
$1000/month
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; Very Good Security vGS sits in the live path of every request carrying sensitive data, so its latency and availability become yours, and an outage in the proxy is a payment outage no matter how healthy your own systems are.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which GNAT Pro and Very Good Security actually diverge.

Attributes where GNAT Pro and Very Good Security differ
AttributeGNAT ProVery Good Security
Starting priceOn request$1000/month
Pricing modelquotePer month
PlatformsWebWeb, 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 Very Good Security does not also cover.

Only in Very Good Security

  • Aliasing proxy
  • PCI scope reduction
  • Network tokenisation
  • Processor optionality
  • Card issuing data
  • Vault and access controls
  • Data residency options
  • Compliance artefacts

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

Very Good Security

  • A marketplace facing its first PCI DSS Level 1 assessment that wants to keep card data off its own estate rather than harden a dozen servicesnot GNAT Pro
  • A merchant negotiating with a second acquirer that needs card credentials portable so the negotiation is real rather than theoreticalnot GNAT Pro
  • A fintech collecting bank account and identity documents that wants sensitive fields absent from logs, backups and analytics warehouses by constructionnot GNAT Pro
  • A card issuer that must display a full PAN in its own mobile app without the app or its backend touching cardholder datanot 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

Very Good Security

  • VGS sits in the live path of every request carrying sensitive data, so its latency and availability become yours, and an outage in the proxy is a payment outage no matter how healthy your own systems are.
  • Token portability is the whole selling point yet leaving VGS means migrating tokens back out, a project the vendor has no incentive to streamline, so the lock-in you removed from your acquirer partly moves to VGS.
  • Entry pricing at around one thousand US dollars a month is real money for a pre-revenue fintech, and it buys volume-limited throughput, so cost scales with exactly the growth that made you buy it.
  • Scope reduction is not scope elimination: your QSA still assesses how you integrate, and teams regularly discover that a support tool or an internal admin screen pulled plaintext back in and dragged systems into scope again.
  • Proxy-based interception constrains how you design request flows, and non-standard payloads, streaming uploads or binary formats often need custom routing rules that make debugging production issues noticeably harder.

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Very Good Security

$1000/month
  • Starter$1000/month
    • Aliasing proxy
    • Vault storage
    • PCI scope reduction
  • Growth$undefined/month
    • Network tokenisation
    • Multiple processors
    • Data residency options
  • Enterprise$undefined/year
    • Custom vault architecture
    • Dedicated support and SLA
    • Contractual compliance coverage

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose Very Good Security if

  • You need aliasing proxy.
  • You work on Web, API.
  • You also want pci scope reduction.
Very Good Security review

Questions people ask

Is GNAT Pro or Very Good Security better?
Neither clearly leads. GNAT Pro starts at On request and Very Good Security at $1000/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Very Good Security?
GNAT Pro starts at On request and Very Good Security at $1000/month.
Does GNAT Pro or Very Good Security run on more platforms?
GNAT Pro runs on Web. Very Good Security runs on Web, 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 Very Good Security is typically brought in for.
What can GNAT Pro do that Very Good Security cannot?
Very Good Security covers Aliasing proxy, PCI scope reduction, Network tokenisation, Processor optionality.

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
Very Good Security: Does VGS make me PCI compliant?

No. It removes cardholder data from your systems so your assessment covers a far smaller boundary, but you still complete an assessment and your integration is part of it.

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
Very Good Security: Can I move to another processor without re-collecting cards?

Yes, that is a core reason people buy it. The vault reveals stored credentials to whichever processor you route to.

Very Good Security: What does it cost?

Published entry pricing is about one thousand US dollars per month; growth and enterprise tiers are quoted.

Very Good Security: Is it only for card data?

No. The proxy handles any sensitive field, including bank details, national identifiers and documents, though payments is where the product is now focused.

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