Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. Underpin records 0 monthly visits with — growth and Freemium pricing.
High-quality human data for AI training, evaluation, and research
Automatically track job applications and catch duplicate submissions
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | chromewebstore.google.com |
| Pricing Model | Paid | Freemium |
| 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 | 4.2 |
| 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.
Automatically track job applications and catch duplicate submissions
Detects job application pages as you use them and records each submission automatically, so you do not have to log anything manually.
Compares new listings against your history and warns you when you are about to apply to a role you have already submitted to.
Keeps a running record of where you have applied so you can concentrate your time on fresh opportunities rather than repeats.
Access your tracked applications through a simple extension popup that opens alongside the site you are already browsing.
The agent recruits, you manage talent
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.
The AI-native ATS that replaces your entire recruiting stack
The AI-native ATS that replaces your entire recruiting stack
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.
An AI recruiter that interviews, verifies, and screens every applicant
An AI recruiter that interviews, verifies, and screens every applicant
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.
Automated job applications and referral outreach in one click
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
