Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. Select Star records 0 monthly visits with — growth and Contact for Pricing pricing.
High-quality human data for AI training, evaluation, and research
Automated data catalog, column-level lineage, and governance for AI-ready data teams.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | chromewebstore.google.com |
| Pricing Model | Paid | Contact for Pricing |
| Monthly Visits | 18.7M (18,697,671) | 0 (0) |
| MoM Traffic Delta | -352.04K (-1.8%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🌐 Global (—) |
| Direct Visits / mo | 12.98M | 0 |
| User Rating | 4.6 | 4.4 |
| Supported Platforms | Website | Browser Extension |
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.
Automated data catalog, column-level lineage, and governance for AI-ready data teams.
Select Star automatically indexes metadata across warehouses, pipelines, and BI tools, generating documentation so analysts spend less time hunting for the right dataset.
Cross-platform, column-level lineage shows where data originates, who is using it, and which dashboards are built on top of it, so impact is visible before you change anything.
A shared data portal where teams tag and describe assets, ask questions, and browse previous discussions attached to each dataset, turning tribal knowledge into searchable documentation.
Use lineage and tagging to locate exactly where sensitive fields travel, propagate PII tags downstream, and support SOC 2-aligned security, confidentiality, and availability practices.
Free / Open-sourcePrivate AI chat from the makers of DuckDuckGo
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.
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
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-sourceThe personal CRM that keeps your network warm — with your LinkedIn graph baked in
Free / Open-sourceThe personal CRM that keeps your network warm — with your LinkedIn graph baked in
Free / Open-sourceEnterprise AI training data, annotation and evaluation services
Free / Open-sourceEnterprise AI training data, annotation and evaluation services
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.
Free / Open-sourceTikTok Shop analytics for products, creators, LIVE commerce and competitors
Free / Open-sourceTikTok Shop analytics for products, creators, LIVE commerce and competitors
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
