How do Prolific and Topicfinder compare in monthly traffic?

Prolific has 18,697,671 monthly visits, while Topicfinder has 10,448. 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%; Topicfinder has -16.1%.

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. Topicfinder: Free Trial, Paid. Free trial plus paid plans. You can start with a free trial at app.topicfinder.com/trial and upgrade to a paid subscription for ongoing reports and projects. Exact tier prices are not published on a public page we could verify, so confirm current pricing in the app.