Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. TopicMojo records 4,837 monthly visits with -13.9% growth and Freemium, Paid pricing.
High-quality human data for AI training, evaluation, and research
Topic and question research powered by 50+ data sources
| Dimension / Metric | ||
|---|---|---|
| Official Domain | prolific.com | topicmojo.com |
| Pricing Model | Paid | Freemium, Paid |
| Monthly Visits | 18.7M (18,697,671) | 4.84K (4,837) |
| MoM Traffic Delta | -352.04K (-1.8%) | -783 (-13.9%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇺🇸 United States (56.5%) |
| Direct Visits / mo | 12.98M | 1.9K |
| User Rating | 4.6 | 4 |
| 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.
Topic and question research powered by 50+ data sources
Build a topic model that pulls data from across the web for any subject, with saved lists, workspaces, custom domains, exports and shareable reports.
Gather the questions people actually ask around your topic across the web so you can understand real intent and answer it.
Be first to cover new and unique searches around a query with the Search Listener tool.
Build a social model across Reddit, Twitter, Pinterest, TikTok, Instagram and 10+ platforms to see what people are talking about.
SpecialistAI-powered YouTube ideas, SEO scoring and coaching that grows your channel faster
SpecialistAI-powered YouTube ideas, SEO scoring and coaching that grows your channel faster
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.
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.
SpecialistAI visibility platform to get your brand cited in AI search
SpecialistAI visibility platform to get your brand cited in AI search
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 web agents that watch your data sources and act on changes
SpecialistAI web agents that watch your data sources and act on changes
SpecialistRank in Google and get cited by AI answer engines
SpecialistRank in Google and get cited by AI answer engines
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
