Prolific records 18,697,671 monthly visits with -1.8% month-over-month growth and Paid pricing. TipsBible records 814 monthly visits with 0% growth and Freemium pricing.
High-quality human data for AI training, evaluation, and research
AI-generated football predictions across 32 leagues, with a public win-rate record you can verify
| Dimension / Metric | | |
|---|---|---|
| Official Domain | prolific.com | tipsbible.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 18.7M (18,697,671) | 814 (814) |
| MoM Traffic Delta | -352.04K (-1.8%) | +814 (0%) |
| Primary Market & Share | 🇺🇸 United States (48.8%) | 🇻🇳 Vietnam (100%) |
| Direct Visits / mo | 12.98M | 334 |
| User Rating | 4.6 | 3.8 |
| 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.
AI-generated football predictions across 32 leagues, with a public win-rate record you can verify
Each pick is produced by the site's own model from form, expected goals (xG), injuries and head-to-head history, with no manual cherry-picking.
Every finished prediction is marked won or lost in public, so you can review a verifiable win rate before subscribing.
Coverage spans 1X2 results, total goals, both teams to score and best-tip selections across 32 leagues.
A dedicated builder assembles multi-leg bets from the day's predictions, with the bet of the day highlighted separately.
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.
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.
AI football predictions with a fully public, graded track record
AI football predictions with a fully public, graded track record
AI picks, prop tracking, and real analytics — free on iOS, Android, and web
AI picks, prop tracking, and real analytics — free on iOS, Android, and web
AI player prop research for every league
AI player prop research for every league
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
AI sports predictions with the reasoning behind every pick
AI sports predictions with the reasoning behind every pick
