Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. Querri records 0 monthly visits with 0% growth and Free Trial, Paid pricing.
High-quality human data for AI training, evaluation, and research
Question-first AI data analyst that turns messy data into trusted answers
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | querri.ai |
| Pricing Model | Paid | Free Trial, Paid |
| Monthly Visits | 18.7M (18,697,671) | 0 (0) |
| MoM Traffic Delta | -352.04K (-1.8%) | 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🌐 Global (—) |
| Direct Visits / mo | 12.98M | 0 |
| 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.
Question-first AI data analyst that turns messy data into trusted answers
Connect sources, then clean, profile, and model them into one Library that records business context, definitions, views, and facts so every answer uses consistent numbers.
Ask in plain English and receive answers, charts, dashboards, slide decks, or Excel workbooks from the same conversation, with no SQL required.
Turn a picture of an existing dashboard or report into a working, data-backed dashboard inside Querri.
Schedule recurring insights, codify repeatable analytical workflows as Skills, and bring cleaned data into Claude, ChatGPT, or Gemini via MCP and a CLI.
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.
SpecialistAn agentic analytics platform that turns questions into governed, trusted answers
SpecialistAn agentic analytics platform that turns questions into governed, trusted answers
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.
SpecialistChat with your data to get analysis, charts, reports, and slides
SpecialistChat with your data to get analysis, charts, reports, and slides
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-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.
SpecialistAI-native business intelligence your whole team can actually trust
SpecialistAI-native business intelligence your whole team can actually trust
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
SpecialistThe AI-native spreadsheet that talks to your databases
SpecialistThe AI-native spreadsheet that talks to your databases
