How do DeepL and Prolific compare in monthly traffic?

DeepL has 95,110,871 monthly visits, while Prolific has 18,697,671. Traffic estimates describe audience size, not product quality.

How do their growth rates compare?

DeepL has a month-over-month growth rate of -1.7%; Prolific has -1.8%.

How does pricing compare?

DeepL: Freemium. Offers a Free tier (50,000 characters/month and 1 file up to 5 MB); paid DeepL Pro plans billed annually are Individual at $8.74/month (€7.49/month), Team at $28.74/user/month (€24.99/user/month), and Business at $57.49/user/month (€49.99/user/month, which bundles DeepL Write Pro), plus custom Enterprise and metered API plans. All paid Translator plans include 30 minutes/user/month of DeepL Voice. 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.