
SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.

clickworker records 1,861,149 monthly visits with +0.5% month-over-month growth and Contact for Pricing pricing. ZeroGPT records 32,864,541 monthly visits with +19.7% growth and Freemium, Paid pricing.

Crowdsourcing data services for AI training and market data
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | clickworker.com | zerogpt.com |
| Pricing Model | Contact for Pricing | Freemium, Paid |
| Monthly Visits | 1.86M (1,861,149) | 32.86M (32,864,541) |
| MoM Traffic Delta |
| +9.57K (+0.5%) |
| +5.41M (+19.7%) |
| Primary Market & Share | 🇺🇸 United States (27.6%) | 🇺🇸 United States (43%) |
|---|
| Direct Visits / mo | 947.13K | 8.22M |
|---|
| User Rating | 3.9 | 3.8 |
|---|
| Supported Platforms | Website | Website |
|---|

Crowdsourcing data services for AI training and market data
Custom image, video, audio and text datasets with human labeling, annotation and validation, delivered with parent company LXT.
Registered freelancers in 136 countries fill microtasks through web, Android and iOS apps, with flexible scaling up or down.
An all-in-one survey tool plus access to a verified respondent pool for external studies and targeted insights.
Real-time point-of-sale data collection, display audits, mystery checks, and usability testing for websites, apps and games.
AI content detection and a full writing toolkit in one place
Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report.
Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals.
Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning.
A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer.

SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.

SpecialistPopular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
#2Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT.
Offers a high-quality pool of verified human participants for research and preference tuning, but is less focused on traditional data annotation.

Connects subject matter experts for advanced LLM training and prompting, but lacks general microtask crowdsourcing capabilities.

SpecialistAcademic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally.

Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages.

Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers.

Specializes in matching AI labs with vetted human experts for RLHF, but offers fewer general data annotation services.

Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities.
SpecialistOnline writing suite blending AI humanization tools with plagiarism and readability checking features.
SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
SpecialistPopular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT.
Offers a high-quality pool of verified human participants for research and preference tuning, but is less focused on traditional data annotation.
Connects subject matter experts for advanced LLM training and prompting, but lacks general microtask crowdsourcing capabilities.
SpecialistAcademic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally.
Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages.
Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers.
Specializes in matching AI labs with vetted human experts for RLHF, but offers fewer general data annotation services.
Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities.
SpecialistOnline writing suite blending AI humanization tools with plagiarism and readability checking features.