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Cybersecurity · head to head

Delinea vs Nix

Delinea logo

Delinea

Cybersecurity

Privileged access management from the merged Thycotic and Centrify

From
On request
Free plan
No
Full reviewWebsite
Nix logo

Nix

Developer Tools

Purely functional package manager and the NixOS distribution built on it, for byte-reproducible environments

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Nix has a free tier, so it costs nothing to try first.
  • Each has a real cost: Delinea the Thycotic and Centrify lineages are integrated unevenly, so buying the full portfolio means running consoles and agents that do not share one administrative model as cleanly as the marketing suggests.; Nix the Nix language is lazy, dynamically typed and poorly documented, and its error messages frequently point at the wrong expression, so debugging a failing build is a skill that takes months rather than days to acquire.
  • They diverge on capability: Delinea covers Secret Server, Nix covers Content-addressed store.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Delinea and Nix actually diverge.

Attributes where Delinea and Nix differ
AttributeDelineaNix
Starting priceOn requestFree
Pricing modelquoteOpen source, no licence fee
Free tierNoYes
PlatformsWeb, Windows, Linux, macOSLinux, macOS, Windows (via WSL)
CategoryCybersecurityDeveloper Tools

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 Delinea

  • Secret Server
  • Privileged session recording
  • Privilege Manager
  • Server PAM
  • Discovery
  • DevOps secrets
  • Behaviour analytics

Only in Nix

  • Content-addressed store
  • Declarative system configuration
  • Atomic upgrades and rollback
  • nix develop shells
  • Flakes
  • Nixpkgs
  • Binary caches
  • Home Manager

What people use each for

The jobs each tool is most often brought in to do.

Delinea

  • An organisation whose cyber insurer now requires privileged credentials to be vaulted and rotatednot Nix
  • A mid-market IT team that abandoned a heavier PAM rollout and needs a vault that can be in production in weeksnot Nix
  • A company removing local administrator rights from every workstation after a ransomware incidentnot Nix
  • An audit finding that shared service account passwords are stored in a spreadsheet and used by contractorsnot Nix

Nix

  • A team that wants every developer and CI runner to use byte-identical toolchains without shipping a container for local worknot Delinea
  • Reproducing a research computation or a build years later from a pinned commit rather than a written recipenot Delinea
  • Managing a fleet of Linux servers declaratively with atomic rollback if a deployment breaks a servicenot Delinea
  • Building minimal container images from precise dependency closures instead of a base image plus a package managernot Delinea

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Delinea

  • The Thycotic and Centrify lineages are integrated unevenly, so buying the full portfolio means running consoles and agents that do not share one administrative model as cleanly as the marketing suggests.
  • Modules are licensed separately by different units, per privileged user for the vault and per endpoint for privilege management, which makes total cost hard to model and easy to underestimate at scale.
  • Delinea does not publish rates, so buyers benchmark against third party and public sector listings; expect list prices to be negotiable by a wide margin, which means the first quote is not the price.
  • Thoma Bravo ownership since 2021 has coincided with firmer renewal pricing, and buyers with a single-vendor PAM estate have little leverage once credentials are inside the vault.
  • Migrating out of a privileged access vault is a genuinely hard project because every automated process that fetches a secret has to be repointed, so the switching cost is real and the vendor knows it.

Nix

  • The Nix language is lazy, dynamically typed and poorly documented, and its error messages frequently point at the wrong expression, so debugging a failing build is a skill that takes months rather than days to acquire.
  • Flakes are the way essentially everyone uses Nix in 2026 and are still formally an experimental feature behind a flag, meaning tutorials, official documentation and real practice disagree with each other constantly.
  • Anything that expects a conventional Linux filesystem layout breaks: prebuilt binaries, language package managers that download their own toolchains, and proprietary vendor installers all need patching or an FHS-compatible wrapper.
  • Project governance has been publicly fractious, producing the Lix fork and the separately funded Determinate Systems distribution, so a new adopter now has to choose which Nix before they can start.
  • The /nix/store grows without bound until you garbage collect, and on a developer laptop with several pinned nixpkgs revisions it routinely reaches tens of gigabytes.

Pricing, plan by plan

Delinea

On request
  • Secret Server$undefined/year
    • Priced per privileged user, tiered by edition
    • Cloud or on premises deployment
    • Session recording in higher editions
  • Privilege Manager$undefined/year
    • Priced per endpoint
    • Local admin rights removal and application elevation
    • Licensed separately from Secret Server
  • Server PAM$undefined/year
    • Priced per managed server or per privileged user
    • Just-in-time server access
    • Licensed separately

Nix

Free
  • Nix and NixOSFree
    • LGPL-2.1 licensed, no commercial tier
    • Public binary cache at cache.nixos.org
    • Community support via forum, Matrix and GitHub

Which should you pick?

Choose Delinea if

  • You need secret server.
  • You work on Web, Windows, Linux, macOS.
  • You also want privileged session recording.
Delinea review

Choose Nix if

  • You need content-addressed store.
  • You want to start without paying.
  • You work on Linux, macOS, Windows (via WSL).
  • You also want declarative system configuration.
Nix review

Questions people ask

Is Delinea or Nix better?
Neither clearly leads. Delinea starts at On request and Nix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Delinea or Nix?
Nix has a free tier; the other does not. Paid plans start at On request for Delinea and Free for Nix.
Does Delinea or Nix run on more platforms?
Delinea runs on Web, Windows, Linux, macOS. Nix runs on Linux, macOS, Windows (via WSL).
Can I use Nix for free?
Yes. Nix has a free tier, so you can try it without paying. Delinea starts at On request.
What is Delinea best used for?
Delinea is most often used for an organisation whose cyber insurer now requires privileged credentials to be vaulted and rotated, a mid-market it team that abandoned a heavier pam rollout and needs a vault that can be in production in weeks, a company removing local administrator rights from every workstation after a ransomware incident, an audit finding that shared service account passwords are stored in a spreadsheet and used by contractors. Of those, an organisation whose cyber insurer now requires privileged credentials to be vaulted and rotated and a mid-market it team that abandoned a heavier pam rollout and needs a vault that can be in production in weeks are not what Nix is typically brought in for.
What can Delinea do that Nix cannot?
Delinea covers Secret Server, Privileged session recording, Privilege Manager, Server PAM. Nix covers Content-addressed store, Declarative system configuration, Atomic upgrades and rollback, nix develop shells.

Answered from the vendors’ own pages

Delinea: Is Delinea the same as Thycotic?

Delinea is the merged company formed from Thycotic and Centrify in 2021. Secret Server is the former Thycotic product; the server access products come from Centrify.

Nix: Do I have to run NixOS to use Nix?

No. The package manager runs fine on any Linux distribution and on macOS, and most teams start there with development shells rather than converting their servers.

Delinea: Is pricing published?

Not by Delinea. Public sector frameworks have listed Secret Server Cloud around 348 GBP per user per year, which is a reference point, not a quote.

Nix: Is Nix a replacement for Docker?

It solves an adjacent problem. Nix reproduces the contents of an environment exactly; Docker distributes an image. Many teams use Nix to build the image.

Delinea: Does one licence cover endpoints and servers?

No. Secret Server, Privilege Manager and Server PAM are separately licensed on different units. Scope all three if your requirement spans them.

Nix: Are flakes safe to use in production?

They are used in production widely and are stable in practice, but they remain officially experimental, which means the interface can still change and documentation is split.

Nix: What is Lix and should I care?

Lix is a community fork of the Nix implementation created after governance disputes. It is largely compatible; the practical impact is that you must decide which implementation your team standardises on.

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