Softwr

Developer Tools · head to head

GNAT Pro vs MetricStream

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
MetricStream logo

MetricStream

Cybersecurity

Enterprise GRC suite for large regulated organisations, with implementation costs that exceed the licence

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; MetricStream implementation typically costs one and a half to two and a half times the first year licence, so a one million dollar licence carries a one and a half to two and a half million dollar rollout that rarely appears in the initial business case.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where GNAT Pro and MetricStream differ
AttributeGNAT ProMetricStream
CategoryDeveloper ToolsCybersecurity

Identical on both: starting price (On request), pricing model (quote), free tier (No), platforms (Web), 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 MetricStream does not also cover.

Only in MetricStream

  • Enterprise and operational risk
  • Regulatory compliance
  • Internal audit
  • Third-party risk
  • Cyber risk quantification
  • Policy and case management
  • Content libraries
  • ESG reporting

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

MetricStream

  • A multinational bank mapping one control set against obligations from several regulators and needing to evidence the mapping to examinersnot GNAT Pro
  • An insurer consolidating separate risk, audit and vendor systems that currently produce contradictory numbers to the boardnot GNAT Pro
  • A pharmaceutical company that must track regulatory change across jurisdictions and show what each change affectednot GNAT Pro
  • An organisation whose three lines of defence must share one risk taxonomy rather than three overlapping spreadsheetsnot 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

MetricStream

  • Implementation typically costs one and a half to two and a half times the first year licence, so a one million dollar licence carries a one and a half to two and a half million dollar rollout that rarely appears in the initial business case.
  • Full deployment takes six to eighteen months, during which the organisation runs old and new processes in parallel and the promised efficiency gain is negative.
  • Per-user pricing in the low thousands per year per seat discourages giving access to the first line of defence, which is precisely where risk data originates, so many deployments end up with data still arriving by spreadsheet.
  • Configuration flexibility comes at the price of specialist skills, and organisations become dependent on MetricStream partners or a small internal team, making later changes slow and expensive.
  • The interface and workflow feel enterprise-heavy next to modern compliance tools, and infrequent business users find it hard, which suppresses the participation the platform is meant to enable.

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

MetricStream

On request
  • MetricStream GRC$undefined/year
    • Enterprise risk, audit, compliance and third-party modules
    • Regulatory content libraries
    • Multi-entity and multi-jurisdiction support

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose MetricStream if

  • You need enterprise and operational risk.
  • You also want regulatory compliance.
MetricStream review

Questions people ask

Is GNAT Pro or MetricStream better?
Neither clearly leads. GNAT Pro starts at On request and MetricStream at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or MetricStream?
GNAT Pro starts at On request and MetricStream at On request.
Does GNAT Pro or MetricStream run on more platforms?
Both run on Web, so platform support will not decide this one for you.
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 MetricStream is typically brought in for.
What can GNAT Pro do that MetricStream cannot?
MetricStream covers Enterprise and operational risk, Regulatory compliance, Internal audit, Third-party risk.

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
MetricStream: What does MetricStream cost?

It is quoted. Market data suggests roughly 75,000 to 150,000 US dollars a year for small enterprise deployments, 250,000 to 500,000 for medium and 750,000 upwards for large.

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
MetricStream: How long is implementation?

Six to eighteen months for a full platform deployment, and the services cost usually exceeds the first year licence.

MetricStream: Is it right for a mid-market company?

Usually not. Its depth suits organisations with several regulators and formal three lines of defence structures.

MetricStream: Does it replace SOC 2 automation tools?

It can cover the framework, but it is not designed for the automated evidence collection those tools do cheaply.

Share

Related pages

More on GNAT Pro

More on MetricStream

Keep looking

Other head to heads