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Developer Tools · head to head

GNAT Pro vs One Identity

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
One Identity logo

One Identity

Cybersecurity

Quest-owned identity governance, PAM and Active Directory management

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; One Identity the portfolio is assembled from separate acquisitions, so components are separately licensed, separately administered and do not present one console, which raises operational cost.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which GNAT Pro and One Identity actually diverge.

Attributes where GNAT Pro and One Identity differ
AttributeGNAT ProOne Identity
PlatformsWebWeb, Windows, Linux
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 One Identity does not also cover.

Only in One Identity

  • Identity Manager
  • Safeguard
  • Active Roles
  • OneLogin
  • Password Manager
  • syslog-ng
  • Starling connectors

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

One Identity

  • An organisation whose authoritative directory will remain on premises Active Directory and needs delegated administration with attribute-level controlnot GNAT Pro
  • A government or defence environment requiring privileged session management on a hardened physical appliance rather than a cloud servicenot GNAT Pro
  • A manufacturer with SAP and Active Directory needing provisioning governed under one certification processnot GNAT Pro
  • An enterprise consolidating Active Directory after an acquisition and needing automated account lifecycle across both forestsnot 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

One Identity

  • The portfolio is assembled from separate acquisitions, so components are separately licensed, separately administered and do not present one console, which raises operational cost.
  • Identity Manager implementations are customisation-heavy and commonly run over a year, with the services spend exceeding the licence cost in the first year.
  • Quest has changed private equity ownership more than once since the Dell separation, and buyers should ask directly about product investment commitments before signing a multi-year deal.
  • Product documentation and support sit behind a customer portal, which makes independent evaluation before purchase harder than with vendors that publish openly.
  • The cloud-native and developer experience trails the pure-play identity vendors, so organisations moving decisively to SaaS applications find the on premises heritage becomes a constraint rather than an asset.

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

One Identity

On request
  • Identity Manager$undefined/year
    • Priced per managed identity
    • On premises or hosted
    • Access certification and provisioning
  • Safeguard$undefined/year
    • Priced per privileged user or per appliance
    • Hardened appliance option for session management
    • Licensed separately from Identity Manager
  • Active Roles$undefined/year
    • Priced per managed Active Directory account
    • Delegated administration and automated provisioning
    • Licensed separately

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose One Identity if

  • You need identity manager.
  • You work on Web, Windows, Linux.
  • You also want safeguard.
One Identity review

Questions people ask

Is GNAT Pro or One Identity better?
Neither clearly leads. GNAT Pro starts at On request and One Identity at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or One Identity?
GNAT Pro starts at On request and One Identity at On request.
Does GNAT Pro or One Identity run on more platforms?
GNAT Pro runs on Web. One Identity runs on Web, Windows, Linux.
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 One Identity is typically brought in for.
What can GNAT Pro do that One Identity cannot?
One Identity covers Identity Manager, Safeguard, Active Roles, OneLogin.

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
One Identity: Is One Identity the same company as Quest?

Yes. One Identity is Quest Software's identity and access management business unit, not a separate vendor.

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
One Identity: Does it include privileged access?

Safeguard provides it, but it is licensed separately from Identity Manager. Neither includes the other.

One Identity: Why choose this over SailPoint or Saviynt?

Almost always because of Active Directory depth via Active Roles or an appliance requirement for privileged sessions. For cloud-first estates the specialists are the stronger choice.

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