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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Free Website Security Scan AI-Powered
✓ verifiedFreemium
Automated website vulnerability scanner combining OWASP ZAP, Nuclei, and other tools into one actionable report, sold per scan.
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ZeroGPT
✓ verifiedFreemium
All-in-one AI writing suite led by an AI content/GPT detector, bundling a humanizer, paraphraser, grammar checker, translator, and chatbot.
26M visits/mo3.4K saves
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GPTZero
✓ verifiedFreemium
AI-content detector aimed at educators, adding plagiarism, grammar and citation checks with claimed high accuracy.
17M visits/mo7.3K saves
Pricing
Quick Scan: $4.99 per report
Standard Scan: $9.99 per report
Deep Scan: $19.99 per report
10 scan credits: $9.99 one-time
50 scan credits: $42 one-time
Monitoring Starter: $29/mo (1 monitored site)
Monitoring Pro: $79/mo (5 monitored sites)
Free trial available
Free: $0 forever
No public pricing
Core features
- ✦Multi-scanner pipeline (ZAP, Nuclei, WPScan, Nmap, sqlmap)
- ✦Tiered scan depth: Quick, Standard, and Deep scans
- ✦Free preview with paid full-report unlock
- ✦CVE and certificate-transparency enrichment via NVD and crt.sh
- ✦Prepaid scan credit packs for repeated use
- ✦Weekly automated monitoring with email alerts
- ✦Multi-model AI text detector (ChatGPT, GPT-5, Gemini, Claude, DeepSeek, etc.)
- ✦AI text humanizer to reduce detectability
- ✦Plagiarism checker across billions of sources
- ✦AI paraphraser, summarizer, and grammar checker
- ✦AI translator and word counter utilities
- ✦ZeroCHAT general-purpose AI chatbot
- ✦WhatsApp and Telegram bot access
- ✦Downloadable PDF detection reports and batch file upload
- ✦Detects AI text from major LLMs (ChatGPT, Claude, Gemini, Llama)
- ✦Sentence-level highlighting with explanations
- ✦Plagiarism and grammar checking
- ✦Hallucination and citation verification
- ✦Authorship/writing-process verification
- ✦Integrations for Chrome, Google Docs, Canvas and API
Use cases
- →Agencies auditing multiple client websites
- →WordPress site owners checking plugin/theme vulnerabilities
- →Teams needing recurring vulnerability monitoring
- →One-off pre-launch security checks for a new site
- →Educators checking student submissions for AI-generated content
- →Writers verifying and humanizing AI-assisted drafts
- →Checking text for plagiarism before publishing
- →Businesses integrating AI detection via API
- →Quick grammar/translation checks while writing
- →Checking student work for AI-generated content
- →Verifying authentic authorship in classrooms
- →Screening submissions for publishers and recruiters
- →Detecting AI text through the API in other apps
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