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6 Free Horizon3.ai NodeZero Alternatives Ranked by Real Users (2026)

Explore 6 alternatives to Horizon3.ai NodeZero — vetted by our editors with real user reviews, pricing, and feature comparisons.

The 6 leading free Horizon3.ai NodeZero alternatives, compared

Quick answer

The best free replacements for Horizon3.ai NodeZero are Auditor, Havoc Shield and SOOS. Auditor leads the list. Compare all 6 on rating and pricing below.

Ready to move on from Horizon3.ai NodeZero? These 6 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
AuditorStreamline compliance, manage risks, elevate efficiency.—Not yet ratedFreeFree Trial · Quotation Basedteams of all sizes
Havoc ShieldSafeguard your business, with Havoc Shield.—Not yet ratedFreeFree Trial · Quotation Based · Subscriptionteams of all sizes
SOOSSecure your digital assets with ease.—Not yet ratedFreefrom $99.00 per monthteams of all sizes
hoggoEmpowering privacy, safeguarding trust with hoggo.—Not yet ratedFreeFreemium · Quotation Basedsmall & mid-size businesses
BugProveStreamline firmware analysis for ultimate IoT security.—Not yet ratedFreeFreemium · Quotation Based · Subscriptionteams of all sizes
Gold Fig CheckupSecure your system with precision and ease.—Not yet ratedFreeFreemium · Subscriptionteams of all sizes
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

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

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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
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

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

Gold Fig Checkup - New SaaS Software

Gold Fig Checkup

Secure your system with precision and ease.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

Add to compare

What is Gold Fig Checkup?

Gold Fig Checkup is your ultimate guide for security and best practice initiatives. Get precise, actionable instructions to maximize your security standards, regardless of the methods you are using, such as Infrastructure as Code (IaC,) Command Line, and/or the Amazon Web Services Console. ...

Read more about Gold Fig Checkup

Starts from $200/Month, also offers free forever plan

Why each one belongs on this list

AuditorBest for teams of all sizes
Havoc ShieldBest for teams of all sizes
SOOSBest for teams of all sizes
hoggoBest for small & mid-size businesses
BugProveBest for teams of all sizes
Gold Fig CheckupBest for teams of all sizes

Actionable security guidance

Watch for: Limited to security focus

What to consider when replacing Horizon3.ai NodeZero

How the 6 free alternatives line up on price and ratings: 6 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 Auditor, Havoc Shield, SOOS. Compare all 6 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 shortlisting 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 — Auditor, Havoc Shield and SOOS 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].