How do their growth rates compare?

Prolific has a month-over-month growth rate of -1.8%; Termdock has -24.3%.

How does pricing compare?

Prolific: Paid. Usage-based for requesters: you pay participant rewards plus a platform fee, with custom quotes for large or managed programmes. Participants earn per completed study; joining is free. Termdock: Free. Free. Termdock is free to download and use on macOS (Apple silicon and Intel) and Windows x64, with installers distributed via GitHub. AI CLI subscriptions and API usage are billed separately by those providers. No Linux installer is currently offered.

What are alternatives to Prolific and Termdock?

Other tools in related categories include Cursor, Google Antigravity, Branded, Command Code, Orca.

Prolific vs Termdock — Traffic (18.7M vs 64.76K), Pricing & Verdict

Open AI Tools

Prolific vs Termdock — Traffic (18.7M vs 64.76K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Prolific	Termdock
Official Domain	prolific.com	termdock.com
Pricing Model	Paid	Free
Monthly Visits	18.7M (18,697,671)	64.76K (64,756)
MoM Traffic Delta	-352.04K (-1.8%)	-20.74K (-24.3%)
Primary Market & Share	🇺🇸 United States (48.8%)	🇺🇸 United States (14.8%)
Direct Visits / mo	12.98M	9.56K
User Rating	4.6	4.3
Supported Platforms	Website	Website

Prolific

High-quality human data for AI training, evaluation, and research

Verified, targetable participant pool

Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.

AI data and human feedback

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.

Built-in data-quality controls

Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.

Fast study launches

Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.