Shortlist by what you need
Start here if you know why you are leaving ZeroThreat.ai.
Want the closest match?
MobbMost similar to ZeroThreat.ai in what it does, its category and its price.
Visit (opens Mobb in a new tab)Need a free plan?
SnykHas a free plan, rated 4.3 out of 5.
Visit (opens Snyk in a new tab)Want to pay less than ZeroThreat.ai?
Nullify AIFrom $67/mo, against from $100/mo for ZeroThreat.ai.
Visit (opens Nullify AI in a new tab)Want the best rated?
RunSybilRated 4.1 out of 5 in our review, against 4.0 for ZeroThreat.ai.
Visit (opens RunSybil in a new tab)
At a glance
Green means better than ZeroThreat.ai, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 ZeroThreat.aiBaseline | 4.0 | $100/mo | Yes | AI-powered DAST scanner checking web apps and APIs against 40,000+ vulnerabilities | |
| Mobb | 4.0Same | $20/mo$80 less | Yes | Fixes security vulnerabilities in code rather than only reporting them. | vs ZeroThreat.ai |
 Superagent | 4.0Same | Free | Yes | An AI security service that finds vulnerabilities in repos, web apps and agents, then fixes them. | vs ZeroThreat.ai |
| RunSybil | 4.1+0.1 | Not listed | No | Autonomous offensive security that finds exploitable vulnerabilities at development speed. | vs ZeroThreat.ai |
| Nullify AI | 4.0Same | $67/mo$33 less | No | Autonomous AI agent that finds, prioritizes, and fixes code vulnerabilities. | vs ZeroThreat.ai |
 Seal Security | 4.1+0.1 | Not listed | No | Remediation agent that ships production-ready fixes for open source vulnerabilities | vs ZeroThreat.ai |
 Vicarius | 4.1+0.1 | Not listed | No | VRx delivers automated patching, patchless protection and script-based remediation. | vs ZeroThreat.ai |
 Enkrypt AI | 4.1+0.1 | Not listed | No | Security and safety testing for AI systems, covering threat detection and ongoing monitoring. | vs ZeroThreat.ai |
| Snyk | 4.3+0.3 | $25/mo$75 less | Yes | Filed for a Nasdaq IPO in 2026 at a $7.4 billion valuation | vs ZeroThreat.ai |
The alternatives in detail
In order of how closely each one matches ZeroThreat.ai.
Mobb
4.0$20/mo
vs ZeroThreat.ai$80 lessSame
Fixes security vulnerabilities in code rather than only reporting them.
- Automatic remediation of scanner findings
- Fixes delivered into the developer workflow
- Works from existing security tooling
Produces fixes rather than adding to a findings backlog
Generated fixes need review before merging
Superagent
4.0Free
vs ZeroThreat.aiSame
An AI security service that finds vulnerabilities in repos, web apps and agents, then fixes them.
- Finds and fixes vulnerabilities rather than only reporting them
- Covers repositories, web applications and AI agents
- Continuous scanning rather than periodic penetration testing
Delivering fixes removes the step where security work usually stalls
Automated fixes still require review before merging
RunSybil
4.1Not listed
vs ZeroThreat.ai+0.1
Autonomous offensive security that finds exploitable vulnerabilities at development speed.
- Autonomous offensive testing rather than passive scanning
- Establishes exploitability rather than listing theoretical findings
- Noise elimination so teams triage less
Exploitability turns a backlog into an actionable priority list
Offensive testing requires careful scoping and authorisation
Nullify AI
4.0$67/mo
vs ZeroThreat.ai$33 lessSame
Autonomous AI agent that finds, prioritizes, and fixes code vulnerabilities.
- Autonomous vulnerability detection, triage, and merge-ready autofix pull requests
- Direct GitHub and Slack integration for repository assessment
- Unlimited repositories and users on the Pro tier rather than seat-based limits
Moves past detection-only scanning by opening autofix pull requests directly
No free tier, so evaluating the product means committing to the $800/year Pro plan
Seal Security
4.1Not listed
vs ZeroThreat.ai+0.1
Remediation agent that ships production-ready fixes for open source vulnerabilities.
- Production-ready fixes for open source vulnerabilities
- Backported patches that avoid breaking version upgrades
- Human vetting of fixes before delivery
Backports avoid forcing breaking dependency upgrades
Ecosystem coverage should be confirmed for less common languages
Vicarius
4.1Not listed
vs ZeroThreat.ai+0.1
VRx delivers automated patching, patchless protection and script-based remediation.
- Automated patching across apps, OS and third-party software
- Patchless protection mitigating vulnerabilities before patching
- Script-based remediation where no packaged fix exists
Patchless protection covers the window where exploitation happens
Patchless mitigation is a stopgap, not a substitute for patching
Enkrypt AI
4.1Not listed
vs ZeroThreat.ai+0.1
Security and safety testing for AI systems, covering threat detection and ongoing monitoring.
- Security and safety testing specific to AI systems
- Detection of prompt injection, jailbreaks and harmful output
- Vulnerability remediation rather than reporting alone
Addresses failure modes conventional application security misses
Only relevant to organisations actually deploying AI systems
Snyk
4.3$25/mo
vs ZeroThreat.ai$75 less+0.3
Filed for a Nasdaq IPO in 2026 at a $7.4 billion valuation.
- Scans code, open-source dependencies, containers, and infrastructure-as-config
- Security built directly into developer workflows rather than added afterward
- Roughly $326M in estimated annual recurring revenue as of 2026
Developer-first design fits security scanning into existing coding workflows
Per-developer pricing can add up quickly for larger engineering organizations
FAQ
Questions people ask
Is ZeroThreat.ai free?
ZeroThreat.ai has a free plan, and paid plans start from $100/mo.
What is the best free alternative to ZeroThreat.ai?
Snyk is the highest-rated alternative here with a free plan (4.3 out of 5). Other free options: Mobb, Superagent.
What is the cheapest alternative to ZeroThreat.ai?
Among paid plans, Mobb has the lowest starting price (from $20/mo). If you need it free, start with Snyk.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.