ThreatOpus vs CYMETRIS

ThreatOpus9.1Visit CYMETRIS9.0Visit

Higher score ThreatOpus #4 in Threat Modeling Software 9.1/10 Free plan Free plan✓ 4 of 4 features Visit ThreatOpus

vs

CYMETRIS #5 in Threat Modeling Software 9.0/10 Paid ✓ 4 of 4 features Visit CYMETRIS

• ThreatOpus fits best

  Teams wanting affordable workflow-integrated modeling

• CYMETRIS fits best

  Automotive teams running ISO/SAE 21434 TARA

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature	ThreatOpus 9.1/10 Visit ↗	CYMETRIS 9.0/10 Visit ↗
At a glance
Editor score	9.1	9.0
Ranking	#4 in Threat Modeling Software	#5 in Threat Modeling Software
Best for	Teams wanting affordable workflow-integrated modeling	Automotive teams running ISO/SAE 21434 TARA
Pricing model	Free plan + paid	Paid
Starting price	£129.99/mo	€99/mo
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud, Self-hosted
Platforms	Web	Web
Support	Email, Docs	Email, Tickets, Docs
Compliance	2FA, SSO/SAML	GDPR
Integrations	11 integrations	6 integrations
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features ThreatOpus 4/4 · CYMETRIS 4/4
Attack-path analysis	✓	✓
Risk prioritization	✓	✓
Collaborative review	✓	✓
Templates and frameworks	✓	✓
Specs
Project limit	Not checked yet	5 projects
Modeling methods	Multiple	Multiple
Deployment	Both	Both
Our review
Pros	Free plan includes threat modeling, PR reviews, STRIDE, and collaboration tools Imports OpenAPI and Terraform with attack-path context and mitigation tracking Connects with major SCM, CI, chat, and collaboration platforms	Guided ISO/SAE 21434 TARA workflow with automatic logic checks Interactive attack-path modeling linked to architecture components Lifecycle versioning, vulnerability linkage, and collaborative review
Cons	Free plan is limited to one repository and one SCM or CI provider All listed methodologies are reserved for the Pro and Enterprise tiers Single sign-on and unlimited workspaces are Enterprise features	CYMETRIS Lite allows up to five active projects No free plan is available Lite support is ticket-based rather than priority support with an SLA
Our verdict	ThreatOpus is a cloud-hosted security platform for security, platform, and engineering teams that want threat modeling connected to development workflows. It combines AI-assisted modeling with pull-request security checks, allowing teams… Read the review →	CYMETRIS is a threat modeling and cyber risk analysis platform for security engineers, product security teams, and cybersecurity consultants. Its strongest fit is automotive product security, where guided Threat Analysis and Risk… Read the review →

Strengths and trade-offs

• ThreatOpus — where it wins

  • Free plan includes threat modeling, PR reviews, STRIDE, and collaboration tools
  • Imports OpenAPI and Terraform with attack-path context and mitigation tracking
  • Connects with major SCM, CI, chat, and collaboration platforms

  Where it doesn't

  • Free plan is limited to one repository and one SCM or CI provider
  • All listed methodologies are reserved for the Pro and Enterprise tiers
  • Single sign-on and unlimited workspaces are Enterprise features

• CYMETRIS — where it wins

  • Guided ISO/SAE 21434 TARA workflow with automatic logic checks
  • Interactive attack-path modeling linked to architecture components
  • Lifecycle versioning, vulnerability linkage, and collaborative review

  Where it doesn't

  • CYMETRIS Lite allows up to five active projects
  • No free plan is available
  • Lite support is ticket-based rather than priority support with an SLA

• ThreatOpus9.1/10 · Free plan

  A workflow-integrated threat modeling platform with a capable free plan and broad CI/CD coverage.

  Visit ThreatOpusFull verdict →
• CYMETRIS9.0/10 · Paid

  A focused TARA platform for automotive teams managing ISO/SAE 21434 risk.

  Visit CYMETRISFull verdict →