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7 Horizon3.ai NodeZero Alternatives Ranked by Real Users — Free Picks Included (2026)

Explore 7 alternatives to Horizon3.ai NodeZero — vetted by our editors with real user reviews, pricing, and feature comparisons.

The 7 leading free Horizon3.ai NodeZero alternatives, compared

Quick answer

The best free replacements for Horizon3.ai NodeZero are SOOS, SimpleRisk and hoggo. SOOS leads the list. Compare all 7 on rating and pricing below.

Ready to move on from Horizon3.ai NodeZero? These 7 security risk analysis software free alternatives are the picks worth testing first. Our ranking leans on SpotScore, which weighs verified satisfaction against market presence, then star ratings and pricing model. Editors check each tool. Start with the table for a fast read, then go section by section below.

ProductSpotScoreRatingPricingBest for
SOOSSecure your digital assets with ease.—Not yet ratedFreefrom $99.00 per monthteams of all sizes
SimpleRiskA comprehensive GRC solution that is Simple. effective. affordable.—Not yet ratedFreeFree Trial · Subscriptionmid-size & enterprise teams
hoggoEmpowering privacy, safeguarding trust with hoggo.—Not yet ratedFreeFreemium · Quotation Basedsmall & mid-size businesses
Havoc ShieldSafeguard your business, with Havoc Shield.—Not yet ratedFreeFree Trial · Quotation Based · Subscriptionteams of all sizes
BugProveStreamline firmware analysis for ultimate IoT security.—Not yet ratedFreeFreemium · Quotation Based · Subscriptionteams of all sizes
AuditorStreamline compliance, manage risks, elevate efficiency.—Not yet ratedFreeFree Trial · Quotation Basedteams of all sizes
6clicksEfficient. Empowering. Risk and Compliance simplified.—Not yet ratedFreeFree Trial · Quotation Based · Subscriptionteams of all sizes
SOOS

SOOS

Secure your digital assets with ease.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is SOOS?

Introducing SOOS, the ultimate software security solution designed to protect your digital assets with ease. With the tagline "Software Security for Everyone," SOOS empowers users to fortify their systems against vulnerabilities, making security accessible to all. SOOS offers a cost-effective ...

Read more about SOOS
Free Trial
SimpleRisk - Logo

SimpleRisk

A comprehensive GRC solution that is Simple. effective. affordable.

Best for: Mid-market · Enterprise

Start Free Trial

Add to compare

watch-demo

Watch Demo

What is SimpleRisk?

SimpleRisk is a streamlined, cost-effective Governance, Risk, and Compliance (GRC) platform built for scalability and ease of use. It enables organizations to manage enterprise governance through centralized policy storage, integrated regulatory frameworks, and risk exception tracking. With ...

Read more about SimpleRisk
Free TrialTry Free →·

Starts from $5000/year when yearly

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hoggo

hoggo

Empowering privacy, safeguarding trust with hoggo.

Best for: SMB teams · Mid-market

Try for Free

Add to compare

What is hoggo?

Hoggo is a privacy risk assessment platform for SaaS companies that helps sellers and buyers identify, evaluate, and reduce privacy risks across their software stack. It supports compliance with data protection regulations and flags vulnerabilities including data breaches and information leaks ...

Read more about hoggo

hoggo offers custom pricing plan

Havoc Shield

Havoc Shield

Safeguard your business, with Havoc Shield.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Havoc Shield?

Introducing Havoc Shield, the ultimate cybersecurity solution for small businesses. With the tagline "The all-in-one cybersecurity solution," Havoc Shield is your go-to program for safeguarding your valuable information and thwarting online threats. At Havoc Shield, we understand the importance ...

Read more about Havoc Shield
Free Trial·

Havoc Shield offers custom pricing plan

BugProve

BugProve

Streamline firmware analysis for ultimate IoT security.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

Add to compare

What is BugProve?

BugProve is a cutting-edge IoT firmware analysis platform that offers automated zero-day discovery capabilities, allowing security engineers to concentrate on more complex challenges while ensuring no small issues go unnoticed. By seamlessly integrating into existing CI/CD pipelines, BugProve ...

Read more about BugProve

BugProve offers custom pricing plan

Auditor

Auditor

Streamline compliance, manage risks, elevate efficiency.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Auditor?

Introducing Auditor, a cutting-edge software solution designed for streamlining compliance assessment and risk management processes. Auditor is an advanced Cloud-based SaaS system that revolutionizes the management of audits, risks, and compliance. This innovative tool is engineered to automate ...

Read more about Auditor
Free Trial·

Auditor offers custom pricing plan

6clicks

6clicks

Efficient. Empowering. Risk and Compliance simplified.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is 6clicks?

6clicks is a GRC platform for businesses and compliance advisors that combines AI-powered risk assessment with built-in regulatory content. It automates governance, risk, and compliance workflows so organizations can complete audits and track obligations without building processes from scratch.

Read more about 6clicks
Free TrialTry Free →·

Starts from $4,800.00/year when Billed Yearly

How Horizon3.ai NodeZero competitors stack up

There are 7 direct Horizon3.ai NodeZero competitors in Security Risk Analysis Software. The ones that come up most often are SOOS, SimpleRisk and hoggo. Each is compared against Horizon3.ai NodeZero on rating, pricing and feature coverage below.

Tools similar to Horizon3.ai NodeZero

Searches for "sites like Horizon3.ai NodeZero" and "apps like Horizon3.ai NodeZero" land on the same set of options as "Horizon3.ai NodeZero alternatives" — the 7 options below cover both, whether you want a like-for-like replacement or something lighter.

Why each one belongs on this list

SOOSBest for teams of all sizes
SimpleRiskBest for mid-size & enterprise teams

SimpleRisk provides a robust set of GRC functionalities at a fraction of the cost of enterprise-level tools, making it highly accessible for small to mid-sized organizations.

Watch for: Compared to more advanced platforms, SimpleRisk may lack complex AI-driven analytics for deep predictive insights.

hoggoBest for small & mid-size businesses
Havoc ShieldBest for teams of all sizes
BugProveBest for teams of all sizes
AuditorBest for teams of all sizes
6clicksBest for teams of all sizes

What to consider when replacing Horizon3.ai NodeZero

How the 7 free alternatives line up on price and ratings: 7 offer a free tier; and paid plans run $99, with SOOS the cheapest entry point.

Our ranking, explained simply.

Frequently Asked Questions (FAQs)

Stuck on something? We're here to help with all the questions and answers in one place.

The top-rated alternatives to Horizon3.ai NodeZero are SOOS, SimpleRisk, hoggo. Compare all 7 alternatives side-by-side above.

When evaluating alternatives to Horizon3.ai NodeZero, prioritize: Security Testing, Risk Assessment, Monitoring, Reports, transparent pricing, free trial availability, and integrations with your existing tools. Use the filters above to compare by feature, budget, and team size.

Migration difficulty depends on how deeply Horizon3.ai NodeZero is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.

Which Horizon3.ai NodeZero alternative wins for your team?

  • On a budget / just exploring: start with a free tier — SOOS, SimpleRisk and hoggo let you evaluate without paying upfront.

Switching from Horizon3.ai NodeZero the smart way

Plan your Horizon3.ai NodeZero migration around your data. Export it, confirm the new tool imports it without loss, and check that the workflows you depend on still work. Run a pilot on a free plan first, and keep Horizon3.ai NodeZero open until the switch is complete.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].