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Developer Tools · head to head

Earthly vs KnowBe4

Earthly logo

Earthly

Developer Tools

Engineering guardrails for the AI era

From
Free
Free plan
Yes
KnowBe4 logo

KnowBe4

Cybersecurity

World's largest security awareness training platform

From
$1/month
Free plan
No

The short version

  • Only Earthly has a free tier, so it costs nothing to try first.
  • Each has a real cost: Earthly pricing model not published; requires sales contact; KnowBe4 published prices assume a three year term, so the quoted per seat rate depends on a long commitment
  • They diverge on capability: Earthly covers Policy as code, KnowBe4 covers Security awareness training.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Earthly and KnowBe4 actually diverge.

Attributes where Earthly and KnowBe4 differ
AttributeEarthlyKnowBe4
Starting priceFree$1/month
Pricing modelNo pricing published on websitesubscription
Free tierYesNo
PlatformsWeb, CLIWeb, Mobile, Email
CategoryDeveloper ToolsCybersecurity
Founded20202010

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 Earthly

  • Policy as code
  • Multi-stage enforcement
  • AI agent governance
  • Repository-wide policies
  • Incident response automation
  • Compliance management
  • Earthfiles build tool
  • Satellites

Only in KnowBe4

  • Security awareness training
  • Phishing simulation
  • Risk assessments
  • Compliance training
  • Incident reporting
  • API access
  • Custom policies
  • Behavior analytics

What people use each for

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

Earthly

  • Enforcing engineering standards across AI and human developersnot KnowBe4
  • Automating incident response procedures across all repositoriesnot KnowBe4
  • Embedding compliance requirements into development workflowsnot KnowBe4
  • Standardizing build processes with Earthfilesnot KnowBe4

KnowBe4

  • Security awareness training and simulated phishing for staffnot Earthly
  • Tracking employee susceptibility to phishing over timenot Earthly

Where each one falls short

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

Earthly

  • Pricing model not published; requires sales contact
  • Earthly Lunar is a recent launch (2025) with limited track record
  • Primarily GitHub-focused; limited integration with other platforms
  • No public documentation on pricing or feature tiers

KnowBe4

  • Published prices assume a three year term, so the quoted per seat rate depends on a long commitment
  • Pricing is banded by seat count, and the lowest band of 25 to 50 seats pays the highest rate
  • Accounts above 1,000 seats have no published price and require a custom quote
  • Third party integrations, Compliance Plus and PhishER Plus are all separately priced per seat add ons
  • The Foundation tier carries 200 training modules against more than 1,000 on Advanced, so content volume is the main gate

Pricing, plan by plan

Earthly

Free

No published plan breakdown. See the Earthly review.

KnowBe4

$1/month
  • Basic$1/month
    • Per user
    • Training modules
    • Phishing templates
  • Advanced$2/month
    • All Basic features
    • Advanced phishing
    • Risk assessments
  • Pro$3/month
    • All Advanced features
    • API access
    • Custom content

Which should you pick?

Choose Earthly if

  • You need policy as code.
  • You want to start without paying.
  • You work on Web, CLI.
  • You also want multi-stage enforcement.

Choose KnowBe4 if

  • You need security awareness training.
  • You work on Web, Mobile, Email.
  • You also want phishing simulation.

Questions people ask

Is Earthly or KnowBe4 better?
Neither clearly leads. Earthly starts at Free and KnowBe4 at $1/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Earthly or KnowBe4?
Earthly has a free tier; the other does not. Paid plans start at Free for Earthly and $1/month for KnowBe4.
Does Earthly or KnowBe4 run on more platforms?
Earthly runs on Web, CLI. KnowBe4 runs on Web, Mobile, Email.
Can I use Earthly for free?
Yes. Earthly has a free tier, so you can try it without paying. KnowBe4 starts at $1/month.
What is Earthly best used for?
Earthly is most often used for enforcing engineering standards across ai and human developers, automating incident response procedures across all repositories, embedding compliance requirements into development workflows, standardizing build processes with earthfiles. Of those, enforcing engineering standards across ai and human developers and automating incident response procedures across all repositories are not what KnowBe4 is typically brought in for.
What can Earthly do that KnowBe4 cannot?
Earthly covers Policy as code, Multi-stage enforcement, AI agent governance, Repository-wide policies. KnowBe4 covers Security awareness training, Phishing simulation, Risk assessments, Compliance training.

Answered from the vendors’ own pages

Earthly: What is the difference between Earthfiles and Earthly Lunar?

Earthfiles is an open-source build tool that reached 12,000 GitHub stars and is used by companies like NVIDIA, Intel, and Databricks. Earthly Lunar is a separate governance platform launched in 2025 for enforcing standards across development workflows.

Source
KnowBe4: What does KnowBe4 cost per employee?

KnowBe4 charges per seat per month on a subscription basis. For 51-100 employees, SAT Foundation costs $2.13/month per seat and SAT Advanced costs $3.40/month per seat. Prices decrease with larger employee counts.

Source
Earthly: How does Earthly Lunar enforce standards?

Lunar converts engineering standards, compliance requirements, and processes documented in AGENTS.md files, wikis, and incident postmortems into enforceable guardrails that apply consistently across repositories and development stages.

Source
KnowBe4: Does KnowBe4 offer a free trial?

KnowBe4 does not offer a full free version, but free tools are available separately including assessments and simulators.

Source
Earthly: What is the pricing for Earthly Lunar?

Pricing is not published on the website. Interested customers should contact Earthly's sales team for current pricing and feature tiers.

Source
KnowBe4: Are there add-on costs beyond the base plan?

Yes, optional add-ons include Third-Party Integrations ($1.10-$1.20/seat/month), Compliance Plus ($0.82-$0.93/seat/month), PhishER Plus ($1.15-$1.50/seat/month), and Student Edition ($0.17/seat/month).

Source
KnowBe4: What currencies does KnowBe4 accept?

KnowBe4 accepts pricing in USD, AUD, BRL, CAD, EUR, GBP, SGD, and ZAR.

Source
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