IriusRisk vs ThreatModeler Nexus

IriusRisk9.3Visit ThreatModeler Nexus9.2Visit

Higher score IriusRisk #2 in Threat Modeling Software 9.3/10 Free plan Free plan✓ 3 of 4 features Visit IriusRisk

vs

ThreatModeler Nexus #3 in Threat Modeling Software 9.2/10 Free plan Free plan✓ 3 of 4 features Visit ThreatModeler

• IriusRisk fits best

  Organizations wanting integrations and automated modeling

• ThreatModeler Nexus fits best

  Cloud-native teams needing AI-assisted modeling

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	IriusRisk 9.3/10 Visit ↗	ThreatModeler Nexus 9.2/10 Visit ↗
At a glance
Editor score	9.3	9.2
Ranking	#2 in Threat Modeling Software	#3 in Threat Modeling Software
Best for	Organizations wanting integrations and automated modeling	Cloud-native teams needing AI-assisted modeling
Pricing model	Free plan + paid	Free plan + paid
Starting price	—	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud, Self-hosted
Platforms	Web	Web
Support	Email, Docs	Email, Tickets
Compliance	ISO 27001, GDPR, SSO/SAML	SOC 2, ISO 27001, SSO/SAML
Integrations	20 integrations	14 integrations
Built for	Small business, Mid-market, Enterprise	Enterprise, Mid-market
Features IriusRisk 3/4 · ThreatModeler Nexus 3/4
Attack-path analysis	Not checked yet	✓ (best)
Risk prioritization	✓	✓
Collaborative review	✓ (best)	Not checked yet
Templates and frameworks	✓	✓
Specs
Project limit	Not checked yet	Not checked yet
Modeling methods	Multiple	Multiple
Deployment	Both	Both
Our review
Pros	Automatic threats, countermeasures, risk scoring, and prioritization Free lifetime Community Edition with three active threat models SaaS and on-premises deployment with workflow integrations	Maps systems from diagrams, code, documents, cloud, and infrastructure-as-code Prioritizes risk and records attack paths with threats and countermeasures Connects modeling with CI/CD, compliance reporting, SSO, and audit trails
Cons	Community Edition supports one user with limited collaboration Community Edition is limited to three active threat models Enterprise pricing is quote-based	No open-source edition The listed platform is web-based rather than a native desktop client Enterprise governance features may add overhead to lightweight reviews
Our verdict	IriusRisk is a threat-modeling platform for security, development, and architecture teams. It combines data-flow diagramming, automatic threat and countermeasure generation, risk scoring, prioritization, security content libraries,… Read the review →	ThreatModeler Nexus is an enterprise threat-modeling platform for security, architecture, development, and compliance teams. It builds system maps from architecture diagrams, code, documents, cloud environments, and infrastructure-as-code,… Read the review →

Strengths and trade-offs

• IriusRisk — where it wins

  • Automatic threats, countermeasures, risk scoring, and prioritization
  • Free lifetime Community Edition with three active threat models
  • SaaS and on-premises deployment with workflow integrations

  Where it doesn't

  • Community Edition supports one user with limited collaboration
  • Community Edition is limited to three active threat models
  • Enterprise pricing is quote-based

• ThreatModeler Nexus — where it wins

  • Maps systems from diagrams, code, documents, cloud, and infrastructure-as-code
  • Prioritizes risk and records attack paths with threats and countermeasures
  • Connects modeling with CI/CD, compliance reporting, SSO, and audit trails

  Where it doesn't

  • No open-source edition
  • The listed platform is web-based rather than a native desktop client
  • Enterprise governance features may add overhead to lightweight reviews

• IriusRisk9.3/10 · Free plan

  A flexible threat-modeling platform with automation, integrations, and a useful free tier.

  Visit IriusRiskFull verdict →
• ThreatModeler Nexus9.2/10 · Free plan

  AI-assisted threat modeling with attack paths, risk prioritization, compliance, and CI/CD checks.

  Visit ThreatModelerFull verdict →