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Cybersecurity · head to head

Socket vs Unit21

Socket logo

Socket

Cybersecurity

Supply chain security platform detecting and blocking malicious dependencies

From
Free
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

  • Only Socket has a free tier, so it costs nothing to try first.
  • Each has a real cost: Socket team plan requires minimum 5-developer commitment, expensive for small teams; 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: Socket covers Malware detection, 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 Socket and Unit21 actually diverge.

Attributes where Socket and Unit21 differ
AttributeSocketUnit21
Starting priceFreeOn request
Pricing modelPer-developer monthly subscription with tiered accessquote
Free tierYesNo
PlatformsWeb, CLI, GitHubWeb
Founded2021Unknown

Identical on both: 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 Socket

  • Malware detection
  • Automatic blocking
  • AI behavior analysis
  • Reachability analysis
  • Slack integration
  • SBOM support
  • SAML SSO
  • GitHub Actions scanning

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.

Socket

  • Blocking zero-day malware attacks in JavaScript dependenciesnot Unit21
  • Managing CVE false positives with precomputed reachability analysisnot Unit21
  • Securing Python and Go supply chains at scalenot Unit21
  • Automating compliance requirements for regulated industriesnot Unit21
  • Real-time threat notifications via Slack integrationnot Unit21

Unit21

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

Where each one falls short

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

Socket

  • Team plan requires minimum 5-developer commitment, expensive for small teams
  • Business plan $50/dev/month becomes costly for teams exceeding 20 members
  • Enterprise pricing requires custom consultation with no transparent pricing
  • Free plan limited to individual developers without team collaboration
  • Reachability analysis improvement (90% false positive reduction) only on Enterprise

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

Socket

Free
  • FreeFree
    • For individual developers
    • Detects 70+ risk types
    • Blocks malicious dependencies automatically
  • Team$25/month
    • Per developer on minimum 5 developers
    • Precomputed reachability analysis cuts 60% false positives
    • Slack alerts for threats
  • Business$50/month
    • Per developer on minimum 20 developers
    • All Team features
    • Compliance integrations with Vanta
  • Enterprise$undefined/custom
    • Function-level reachability eliminates up to 90% irrelevant CVEs
    • Multi-repository system support
    • Named account manager

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 Socket if

  • You need malware detection.
  • You want to start without paying.
  • You work on Web, CLI, GitHub.
  • You also want automatic blocking.
Socket review

Choose Unit21 if

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

Questions people ask

Is Socket or Unit21 better?
Neither clearly leads. Socket starts at Free and Unit21 at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Socket or Unit21?
Socket has a free tier; the other does not. Paid plans start at Free for Socket and On request for Unit21.
Does Socket or Unit21 run on more platforms?
Socket runs on Web, CLI, GitHub. Unit21 runs on Web.
Can I use Socket for free?
Yes. Socket has a free tier, so you can try it without paying. Unit21 starts at On request.
What is Socket best used for?
Socket is most often used for blocking zero-day malware attacks in javascript dependencies, managing cve false positives with precomputed reachability analysis, securing python and go supply chains at scale, automating compliance requirements for regulated industries. Of those, blocking zero-day malware attacks in javascript dependencies and managing cve false positives with precomputed reachability analysis are not what Unit21 is typically brought in for.
What can Socket do that Unit21 cannot?
Socket covers Malware detection, Automatic blocking, AI behavior analysis, Reachability analysis. Unit21 covers No-code rule builder, Case management, SAR filing, Backtesting.

Answered from the vendors’ own pages

Socket: How many zero-day attacks does Socket detect?

Socket detects over 100 zero-day attacks weekly across JavaScript, Python, and Go ecosystems.

Source
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.

Socket: What is precomputed reachability analysis?

Socket's precomputed reachability analysis cuts CVE false positives by 60% automatically on Team plans, and up to 90% on Enterprise plans through function-level analysis.

Source
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.

Socket: Is there a discount for annual billing?

Yes. Socket offers a 20% discount for annual commitments across all subscription tiers.

Source
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.

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