Prolific
Prolific is great for collecting high-quality human data.
At a glance
Starts at
$90 per month
Price as published by the vendor, September 2026.
Free tier
No
Platforms
Web, API
Best for
Teams with research expertise
Not for
Small ad-hoc teams
3.9 out of 5
Scored by a Toolio reviewer after real useOur verdict
Prolific provides access to quality participants quickly, but may be too expensive for small projects. Suitable for AI development and research teams. Those seeking free options should look elsewhere.
✓What it does well
Quick accessInstant access to quality participants with no monthly fees.
Customization300+ audience filters for representative and quota samples.
Expert curationManaged services offer expert-led data collection and custom sourcing campaigns.
✕Where it falls short
Costly for small projectsPlatform pricing starts at $90 per month, which may be too expensive for smaller teams or one-off studies.
Limited free tierFree plan is limited to a few participants and no managed services.
Doesn't handle all research typesNot suitable for non-technical or large-scale qualitative studies without dedicated support.
Key features
API integrationCustom screening API and no-code integrations available.
Managed servicesExpert-led data collection with quality assurance for complex research needs.
Participant messagingDirect participant messaging and email support included in platform plan.
Custom Sourcing CampaignsExpert curation and verification of participants for complex studies.