Softwr

Cybersecurity · head to head

Semperis vs Unit21

Semperis logo

Semperis

Cybersecurity

Identity threat detection and Active Directory forest recovery for AD, Entra ID and Okta, from a privately held US vendor.

From
On request
Rated
-
Full reviewWebsite
Unit21 logo

Unit21

Cybersecurity

No-code fraud and AML risk operations platform for fintechs and neobanks

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Semperis scope is limited to Active Directory, Entra ID and Okta, so an organisation whose critical identity lives elsewhere gets little from it, and the recovery value declines in direct proportion to how much has already moved off on-premises AD.; Unit21 it is built for fintech scale rather than card issuer scale, so organisations reaching very high transaction volumes generally re-evaluate against heavier platforms and face a migration.
  • They diverge on capability: Semperis covers Active Directory Forest Recovery, Unit21 covers No-code rule builder.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Semperis and Unit21 actually diverge.

Attributes where Semperis and Unit21 differ
AttributeSemperisUnit21

Identical on both: starting price (On request), pricing model (quote), free tier (No), platforms (Web), user rating (Not yet rated), category (Cybersecurity).

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 Semperis

  • Active Directory Forest Recovery
  • Malware-free restore
  • Replication-stream monitoring
  • Automated rollback
  • Attack indicator scoring
  • Entra ID and Okta coverage
  • Purple Knight
  • Forest Druid

Only in Unit21

  • No-code rule builder
  • Case management
  • SAR filing
  • Backtesting
  • Identity and device signals
  • Data ingestion API

What people use each for

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

Semperis

  • An organisation that cannot answer an auditor or insurer asking how long it would take to rebuild Active Directory after a destructive attacknot Unit21
  • Post-incident recovery where domain controllers are compromised and restoring from system-state backup would reintroduce the attacker's footholdnot Unit21
  • Continuous detection of privileged group changes and directory-level tampering that domain controller security logs missnot Unit21
  • Hybrid estates where AD, Entra ID and Okta all matter and no single tool currently shows changes across the threenot Unit21

Unit21

  • A neobank whose sponsor bank requires a documented monitoring programme before it will keep the BIN sponsorshipnot Semperis
  • A crypto exchange needing SAR filing and case management without building an internal compliance engineering teamnot Semperis
  • A payments startup where the fraud lead needs to ship a new rule the same day a new attack pattern appearsnot Semperis
  • A lender consolidating fraud alerts from three point tools into one investigator queue with a single audit trailnot Semperis

Where each one falls short

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

Semperis

  • Scope is limited to Active Directory, Entra ID and Okta, so an organisation whose critical identity lives elsewhere gets little from it, and the recovery value declines in direct proportion to how much has already moved off on-premises AD.
  • The licence buys tooling, not a proven runbook: forest recovery is only worth what your last rehearsal demonstrated, and a plan that has never been executed end to end in a lab is an untested assumption regardless of what was purchased.
  • It overlaps with backup and directory management products from Quest, Veeam, Commvault and others, so the buyer must argue internally why a dedicated product is needed alongside a backup contract that already claims to protect Active Directory.
  • Running Directory Services Protector well requires someone who understands AD internals, replication metadata and Tier 0 attack paths, and without that person the alerts on privileged changes are either ignored or auto-reverted in ways that break legitimate administration.
  • Licensing is driven by identity object counts, so directories carrying years of stale user accounts and service principals pay for objects that should have been deleted, and the cleanup project that would reduce the bill is the one nobody has time for.

Unit21

  • It is built for fintech scale rather than card issuer scale, so organisations reaching very high transaction volumes generally re-evaluate against heavier platforms and face a migration.
  • No-code rule authoring shifts power to the risk team, which is the point, but without governance it produces rule sprawl that nobody can explain to an examiner two years later.
  • Detection quality depends on the signals you feed it, so a thin integration produces thin results and the platform cannot compensate with proprietary consortium data the way larger vendors do.
  • Pricing is quoted by volume with an annual commitment, so a fintech whose growth stalls pays for headroom it did not use.
  • SAR filing coverage is oriented to United States FinCEN reporting, so firms filing in the United Kingdom, European Union or Asia handle those submissions outside the tool.

Pricing, plan by plan

Semperis

On request

No published plan breakdown. See the Semperis review.

Unit21

On request
  • Unit21 Platform$undefined/year
    • Priced by monitored volume and modules, annual contract
    • Fraud, AML and case management packaged separately
    • Implementation and historical data backfill quoted with the subscription

Which should you pick?

Choose Semperis if

  • You need active directory forest recovery.
  • You also want malware-free restore.
Semperis review

Choose Unit21 if

  • You need no-code rule builder.
  • You also want case management.
Unit21 review

Questions people ask

Is Semperis or Unit21 better?
Neither clearly leads. Semperis starts at On request and Unit21 at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Semperis or Unit21?
Semperis starts at On request and Unit21 at On request.
Does Semperis or Unit21 run on more platforms?
Both run on Web, so platform support will not decide this one for you.
What is Semperis best used for?
Semperis is most often used for an organisation that cannot answer an auditor or insurer asking how long it would take to rebuild active directory after a destructive attack, post-incident recovery where domain controllers are compromised and restoring from system-state backup would reintroduce the attacker's foothold, continuous detection of privileged group changes and directory-level tampering that domain controller security logs miss, hybrid estates where ad, entra id and okta all matter and no single tool currently shows changes across the three. Of those, an organisation that cannot answer an auditor or insurer asking how long it would take to rebuild active directory after a destructive attack and post-incident recovery where domain controllers are compromised and restoring from system-state backup would reintroduce the attacker's foothold are not what Unit21 is typically brought in for.
What can Semperis do that Unit21 cannot?
Semperis covers Active Directory Forest Recovery, Malware-free restore, Replication-stream monitoring, Automated rollback. Unit21 covers No-code rule builder, Case management, SAR filing, Backtesting.

Answered from the vendors’ own pages

Semperis: Does this replace my backups?

No. It replaces the Active Directory recovery procedure specifically. You still need backups for everything else, and the point of Semperis is that a generic system-state backup of a domain controller is a poor way to recover a forest because it restores the operating system along with whatever compromised it.

Unit21: Do we need engineers to run it?

Only for the initial data integration. After that the design intent is that risk and compliance staff author and deploy rules themselves.

Semperis: Is it useful if we are cloud-only on Entra ID?

Partly. Directory Services Protector covers Entra ID and Okta for change tracking and posture, but the forest recovery product, which is the strongest reason to buy, applies to on-premises Active Directory. A genuinely cloud-only organisation should weigh it against Microsoft's own tooling.

Unit21: Does it file SARs?

Yes, it generates and electronically files suspicious activity reports to FinCEN. Non-US regimes are not covered to the same depth.

Semperis: Are Purple Knight and Forest Druid really free?

Yes, both are free downloads with no licence requirement, and they are widely used by organisations that are not Semperis customers. They are also, transparently, the top of the sales funnel.

Unit21: Can we test a rule before it goes live?

Yes. Backtesting against historical data to see projected alert volume is one of the more useful parts of the product, because alert volume is the real cost.

Semperis: How long does forest recovery actually take?

The honest answer is whatever your rehearsal took. The vendor's case is hours instead of days, and automation genuinely removes most manual steps, but the number that matters for your board is the one from a test in your own environment.

Semperis: Does it require agents on domain controllers?

It collects directory changes from the AD replication stream, which is what lets it see changes that bypass the security log. Deployment details vary by product and version, so confirm the exact architecture against your domain controller change-control rules.

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