
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. Skillry records 535,817 monthly visits with +1,762.1% growth and Freemium pricing.

Agent Skills that give your coding agent real design taste
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | prolific.com | skillry.dev |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 18.7M (18,697,671) | 535.82K (535,817) |
| MoM Traffic Delta | -352.04K (-1.8%) |
| +507.04K (+1,762.1%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇺🇸 United States (17%) |
|---|
| Direct Visits / mo | 12.98M | 242.88K |
|---|
| User Rating | 4.6 | 4.5 |
|---|
| 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.

Agent Skills that give your coding agent real design taste
Every Skill is designed, written and tested by the Skillry team, with templates and scripts built from a finished piece of work.
Skills cover web pages, slide decks, images, video and reports, so your agent can produce a range of assets.
Install and run Skills inside Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI and more.
Each Skill page shows a real result it generated, so you can judge the visual style before adding it.

Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
SpecialistSupplies landing page design inspiration and prompts, focusing more on visual website layouts than code-ready agent skills.

SpecialistInstalls directly as a design skill pack to enforce UI rules, whereas Skillry acts as a broader discovery library.
#3
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.

Free / Open-sourceBroader community catalog of open-source agent SKILL.md files, but less focused specifically on design system templates.

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.


SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.


Free / Open-sourceOffers an open Markdown convention to guide AI coding assistants, but functions as a standard format rather than a curated library.


SpecialistA hand-picked directory of design engineering resources, tools and inspiration

Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.

Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
SpecialistSupplies landing page design inspiration and prompts, focusing more on visual website layouts than code-ready agent skills.
SpecialistInstalls directly as a design skill pack to enforce UI rules, whereas Skillry acts as a broader discovery library.
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Free / Open-sourceBroader community catalog of open-source agent SKILL.md files, but less focused specifically on design system templates.
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.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistA hand-picked directory of design engineering resources, tools and inspiration
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.