CAIRIS vs ThreatZ

CCAIRIS9.0Visit ThreatZ6.9Visit

Higher score C CAIRIS #1 in Threat Modeling Software 9.0/10 Free plan Free plan✓ 4 of 4 features Visit CAIRIS

vs

ThreatZ #8 in Threat Modeling Software 6.9/10 From $1,199/mo (annual) ✓ 4 of 4 features Visit ThreatZ

• CAIRIS fits best

  Teams needing broad, open-source threat modeling

• ThreatZ fits best

  Automotive enterprises needing full assurance workflows

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Side by side

Feature	CCAIRIS 9.0/10 Visit ↗	ThreatZ 6.9/10 Visit ↗
At a glance
Editor score	9.0	6.9
Ranking	#1 in Threat Modeling Software	#8 in Threat Modeling Software
Best for	Teams needing broad, open-source threat modeling	Automotive enterprises needing full assurance workflows
Pricing model	Free	Paid
Starting price	Not published	Not published
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud, Self-hosted
Platforms	Web, Windows, macOS, Linux	Web
Support	Docs	Email
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features CAIRIS 4/4 · ThreatZ 4/4
Attack-path analysis	✓	✓
Risk prioritization	✓	✓
Collaborative review	✓	✓
Templates and frameworks	✓	✓
Specs
Project limit	Not published	3 projects
Modeling methods	Multiple	Multiple
Deployment	Both	Both
Our review
Pros	Combines data-flow, threat, requirements, and architectural modeling Includes risk scoring, attack trees, patterns, and reusable templates Supports self-hosting, APIs, imports, exports, and generated documentation	Combines TARA, attack paths, risk assessment, SBOM and compliance work products Connects with Jira, GitHub, DOORS, Polarion, CodeQL and vulnerability databases Supports hosted private cloud, on-premise and air-gapped deployments
Cons	Its broad scope may require more modeling coordination than focused tools Self-hosted deployment places infrastructure responsibility on the organization The feature set extends beyond teams seeking only basic threat diagrams	Team is limited to three projects No free plan is available Professional pricing is charged per user per month
Our verdict	CAIRIS is an open-source platform for designing, specifying, and validating secure and usable systems. It is intended for security designers, requirements engineers, researchers, educators, and organizations working on software or… Read the review →	ThreatZ is an automotive cybersecurity engineering platform for OEMs and Tier-1 suppliers. It brings system and vehicle architecture modeling, TARA, attack-path analysis, risk assessment, SBOM management, vulnerability monitoring, security… Read the review →

Strengths and trade-offs

• CAIRIS — where it wins

  • Combines data-flow, threat, requirements, and architectural modeling
  • Includes risk scoring, attack trees, patterns, and reusable templates
  • Supports self-hosting, APIs, imports, exports, and generated documentation

  Where it doesn't

  • Its broad scope may require more modeling coordination than focused tools
  • Self-hosted deployment places infrastructure responsibility on the organization
  • The feature set extends beyond teams seeking only basic threat diagrams

• ThreatZ — where it wins

  • Combines TARA, attack paths, risk assessment, SBOM and compliance work products
  • Connects with Jira, GitHub, DOORS, Polarion, CodeQL and vulnerability databases
  • Supports hosted private cloud, on-premise and air-gapped deployments

  Where it doesn't

  • Team is limited to three projects
  • No free plan is available
  • Professional pricing is charged per user per month

• CCAIRIS9.0/10 · Free plan

  A broad open-source choice for teams connecting threats, requirements, architecture, and risk.

  Visit CAIRISFull verdict →
• ThreatZ6.9/10 · From $1,199/mo (annual)

  A broad automotive threat modeling suite for enterprises managing assurance across complex programs.

  Visit ThreatZFull verdict →