Knock vs Mailtrap pricing

Name: Knock (Email APIs)
Brand: Knock

Verified 2026-10-23 (2 days ago)Source: Knock: knock.app/pricing, Mailtrap: mailtrap.io/pricing/Verified shows the older of the two.

Monthly cost at three volumes

These services do not bill on a shared metric, so a like-for-like cost is unlisted.

Tiers of Knock and Mailtrap aligned by position: free, entry, mid, top
Position	Knock	Mailtrap
Free	$0 / moFree · 10,000 messages sent (any channel) / mo	$0 / moFree · 4,000 emails sent / mo
Entry	$250 / moStarter · 50,000 messages sent (any channel) / mo	$15 / moBasic · 10,000 emails sent / mo
Mid	no tier	$85 / moBusiness · 100,000 emails sent / mo
Top	Contact salesEnterprise	$59 / moPro · 125,000 emails sent / mo

Tightest documented rate limit of each service
Measure	Knock	Mailtrap
Tightest limit	unlisted	150 emails sent per dayFree tier

No changes recorded.

No change detected for either service in the last 90 days.