How do Prolific and Ridley compare in monthly traffic?

Prolific has 18,697,671 monthly visits, while Ridley has 8,086. Traffic estimates describe audience size, not product quality.

How do their growth rates compare?

Prolific has a month-over-month growth rate of -1.8%; Ridley has +25.5%.

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. Ridley: Paid. Paid, flat-fee plans with no percentage commission. Essentials is $1,499 upfront and $0 at close, giving access to the full AI selling platform with an on-call concierge. Pro is $3,999 upfront and $0 at close and adds a licensed agent who runs the transaction. Pro Pay Later is $0 upfront with $5,999 due at close. Every plan includes comp analysis and pricing strategy, the listing builder, MLS plus 100+ site distribution, buyer AI chat, documents and e-signatures, deadline tracking, professional signage and a free strategy consultation.