Softwr

Developer Tools · head to head

GNAT Pro vs HashiCorp Vault

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
HashiCorp Vault logo

HashiCorp Vault

Cybersecurity

Manage secrets and protect sensitive data

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only HashiCorp Vault has a free tier, so it costs nothing to try first.
  • Each has a real cost: GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes; HashiCorp Vault policies are written in HCL with no graphical user interface for policy management or editing
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which GNAT Pro and HashiCorp Vault actually diverge.

Attributes where GNAT Pro and HashiCorp Vault differ
AttributeGNAT ProHashiCorp Vault
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWebLinux, Windows, Mac, Api
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2014

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 GNAT Pro

Nothing recorded that HashiCorp Vault does not also cover.

Only in HashiCorp Vault

  • Secret storage
  • Dynamic secrets
  • Encryption as a service
  • Identity-based access
  • Audit logging
  • Leasing and renewal
  • Secret engines
  • Auth methods

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

HashiCorp Vault

  • Secrets managementnot GNAT Pro
  • Database credentialsnot GNAT Pro
  • API keysnot GNAT Pro
  • SSH accessnot GNAT Pro
  • PKI and certificatesnot 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

HashiCorp Vault

  • Policies are written in HCL with no graphical user interface for policy management or editing
  • Unsealing requires managing multiple key shares and coordinating a quorum of operators
  • Community Edition lacks enterprise features like namespaces and disaster recovery replication
  • Requires additional monitoring solutions for alerting and observability

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

HashiCorp Vault

Free
  • Open SourceFree
    • Secrets management
    • Encryption
    • Community support
  • Vault Enterprise$6000/year
    • Replication
    • HSM support
    • Advanced audit

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose HashiCorp Vault if

  • You need secret storage.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want dynamic secrets.
HashiCorp Vault review

Questions people ask

Is GNAT Pro or HashiCorp Vault better?
Neither clearly leads. GNAT Pro starts at On request and HashiCorp Vault at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or HashiCorp Vault?
HashiCorp Vault has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for HashiCorp Vault.
Does GNAT Pro or HashiCorp Vault run on more platforms?
GNAT Pro runs on Web. HashiCorp Vault runs on Linux, Windows, Mac, Api.
Can I use HashiCorp Vault for free?
Yes. HashiCorp Vault has a free tier, so you can try it without paying. GNAT Pro starts at On request.
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 HashiCorp Vault is typically brought in for.
What can GNAT Pro do that HashiCorp Vault cannot?
HashiCorp Vault covers Secret storage, Dynamic secrets, Encryption as a service, Identity-based access.

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
HashiCorp Vault: Does HashiCorp Vault have a free version?

Yes. The open-source Community Edition is completely free and includes core secrets management, dynamic secrets, and encryption as a service. It is self-hosted with no licensing fees or secret count limits, but lacks enterprise features like namespaces, disaster recovery replication, and Sentinel policies.

Source
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
HashiCorp Vault: Can I use HashiCorp Vault in production?

The Community Edition is suitable for non-production environments and small teams. For production deployments, organizations typically use HCP Vault Dedicated (managed cloud service starting at approximately 22 USD per month) or Vault Enterprise with custom pricing that includes disaster recovery, performance replication, and 24/7 support.

Source
HashiCorp Vault: What are the main integrations available?

Vault integrates with AWS, Azure, Google Cloud, Active Directory, Okta, and 80+ other platforms. It supports dynamic credential generation for cloud providers, database systems, and identity services, enabling centralized secret management across multi-cloud infrastructure.

Source
HashiCorp Vault: Does Vault work offline?

Vault requires network connectivity to function as it is a centralized secrets management server. However, it can be deployed on-premises for air-gapped environments, and clients can cache short-lived tokens for temporary offline access once authenticated.

Source
Share

Related pages

More on GNAT Pro

More on HashiCorp Vault

Keep looking

Other head to heads