Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. Yay! Forms records 39,209 monthly visits with +13.3% growth and Freemium, Free Trial pricing.
High-quality human data for AI training, evaluation, and research
Build high-converting AI forms, surveys, and quizzes in seconds
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | yayforms.com |
| Pricing Model | Paid | Freemium, Free Trial |
| Monthly Visits | 18.7M (18,697,671) | 39.21K (39,209) |
| MoM Traffic Delta | -352.04K (-1.8%) | +4.6K (+13.3%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇵🇹 Portugal (65.9%) |
| Direct Visits / mo | 12.98M | 28.74K |
| User Rating | 4.6 | 4.2 |
| 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.
Build high-converting AI forms, surveys, and quizzes in seconds
Automatically analyzes all survey responses and condenses large datasets into clear, actionable summaries and trends.
Detects how respondents feel, surfaces recurring themes, and classifies open-ended answers into categories you define.
Build multi-step forms with question branching, jumps, calculators, hidden fields, file uploads, and multiple ending screens.
See where respondents abandon a form and capture incomplete answers so follow-up and lead recovery stay possible.
Build powerful forms, surveys and quizzes with AI in minutes
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.
Build forms, surveys and quizzes in seconds — with unlimited free responses
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.
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
Privacy-first AI surveys with end-to-end encrypted responses
Privacy-first AI surveys with end-to-end encrypted responses
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.
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.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
AI quiz, poll and survey builder that turns traffic into leads
AI quiz, poll and survey builder that turns traffic into leads
