
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.
Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. ShareID records 3,618 monthly visits with +200.5% growth and Contact for Pricing pricing.

Modular identity verification built for eIDAS 2.0
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | prolific.com | shareid.ai |
| Pricing Model | Paid | Contact for Pricing |
| Monthly Visits | 18.7M (18,697,671) | 3.62K (3,618) |
| MoM Traffic Delta | -352.04K (-1.8%) | +2.41K (+200.5%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇺🇸 United States (71.5%) |
| Direct Visits / mo | 12.98M | 1.44K |
| User Rating | 4.6 | 4.1 |
| 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.

Modular identity verification built for eIDAS 2.0
Verify ID document authenticity by photo, video or NFC at low, substantial or high eIDAS 2.0 assurance levels.
Detect spoofing attempts with liveness checks that adapt to your required assurance level and follow ETSI TS 119 461 alignment.
Enroll users with their PID attestations and issue or verify EAA and QEAA attestations in line with EUDI Wallet specifications.
Let users sign in with their real, already-verified identity through EUDI Wallet authentication rather than a password.

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.
Free / Open-sourceDetect, humanize and verify AI content in one place
Free / Open-sourceDetect, humanize and verify AI content in one place

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-sourceReverse face search across the public web, with strong privacy guardrails
Free / Open-sourceReverse face search across the public web, with strong privacy guardrails

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.

Global identity verification, KYC/AML compliance and fraud prevention
Global identity verification, KYC/AML compliance and fraud prevention

Identity verification, KYC, KYB and AML compliance in one platform
Identity verification, KYC, KYB and AML compliance in one platform

AI-powered ID scanning, authentication and identity proofing
AI-powered ID scanning, authentication and identity proofing