Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. PromptLoop records 33,817 monthly visits with -1.6% growth and Freemium, Contact for Pricing pricing.
High-quality human data for AI training, evaluation, and research
AI-powered GTM data and automated B2B research, straight from your spreadsheet
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | promptloop.com |
| Pricing Model | Paid | Freemium, Contact for Pricing |
| Monthly Visits | 18.7M (18,697,671) | 33.82K (33,817) |
| MoM Traffic Delta | -352.04K (-1.8%) | -553 (-1.6%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇺🇸 United States (31.5%) |
| Direct Visits / mo | 12.98M | 13.66K |
| User Rating | 4.6 | 4.3 |
| Supported Platforms | Website | Website |
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
AI-powered GTM data and automated B2B research, straight from your spreadsheet
A single workflow covers finding companies and people, scraping their sites and appending the datapoints you need, in the format you choose.
Launch a web agent on thousands of websites at once to extract deep research, emails, phone numbers and more from a whole dataset.
Native HubSpot, Salesforce and Excel integrations push enriched records straight into the tools your team already uses.
Dozens of ready-made templates plus built-in company, people and geographic search enrichment, so you can start from scratch quickly.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
The AI-native CRM for agentic revenue teams
Your 24/7 AI outreach agent that finds leads and books demos
Build GTM systems that turn data into revenue
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
AI sales platform for unlimited B2B leads and outreach
AI sales platform for unlimited B2B leads and outreach
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
Build, share, and control AI agents that actually do the work
Build, share, and control AI agents that actually do the work
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
No-code automation for sales prospecting and data extraction
No-code automation for sales prospecting and data extraction
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
