GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. Postly records 73,916 monthly visits with +17.9% growth and Freemium, Paid pricing.
AI detection and writing verification built for schools and editors
Agentic AI social media scheduler where your AI agent plans, you approve, Postly publishes
| Dimension / Metric | ||
|---|---|---|
| Official Domain | gptzero.me | postly.ai |
| Pricing Model | Freemium, Paid | Freemium, Paid |
| Monthly Visits | 23.25M (23,246,989) | 73.92K (73,916) |
| MoM Traffic Delta | +5.7M (+32.5%) | +11.23K (+17.9%) |
| Primary Market & Share | 🇺🇸 United States (54%) | 🇺🇸 United States (29.7%) |
| Direct Visits / mo | 7.53M | 47.99K |
| User Rating | 4.1 | 4.2 |
| Supported Platforms | Website | Website |
AI detection and writing verification built for schools and editors
Paste text or upload a document and get an overall AI probability score plus a sentence-by-sentence breakdown of which parts look machine-written.
Flags AI text from major model families including ChatGPT, Gemini, Claude, Llama, and others, rather than training for a single model.
A Chrome extension and Google Docs add-on bring scanning into Gmail, Docs, Classroom, and other surfaces you already work in.
Checks content for copied passages from outside sources so you can separate AI-generation questions from originality questions.
Agentic AI social media scheduler where your AI agent plans, you approve, Postly publishes
Connect a compatible AI agent, brief it on a campaign, then review and approve channel-specific drafts before Postly schedules them.
Plan and publish to Instagram, Facebook, LinkedIn, TikTok, YouTube, Pinterest, X, Threads, Bluesky, Google Business Profile, Telegram, Slack and other supported destinations.
Content, channels and posting times are confirmed by a human before anything goes live, which suits agencies with client approvals.
Find creators by niche and audience stats, agree on a brief and rate, or join as a creator to take sponsored campaigns.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features.
SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
SpecialistCombines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
SpecialistCombines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification.
SpecialistCombines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification.
Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users.
Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users.
Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.
Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero.
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition.
SpecialistPlan, approve and schedule social content with your whole team in one place
SpecialistPlan, approve and schedule social content with your whole team in one place
Excels at scanning both text and images with high accuracy, but offers fewer free daily checks than GPTZero.
Excels at scanning both text and images with high accuracy, but offers fewer free daily checks than GPTZero.
Free / Open-sourceAgentic social media scheduling for 30+ channels
AI detector that highlights evidence, not just a score
AI detector that highlights evidence, not just a score
SpecialistTailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
SpecialistTailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
SpecialistSocial media management, scheduling and X/Twitter tools in one place
SpecialistSocial media management, scheduling and X/Twitter tools in one place
