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Compared with the regular price of $120. You save $91.
Get this deal at AppSumoPrice checked . Prices change often, please check the store before you buy.
Why it is worth it
A one-time $29 for 3,000 daily verifications and 75,000 monthly credits is a low cost if you build prospect lists regularly. Finding and verifying share one credit balance, so you do not pay two tools.
The catch
This is an early-stage Radar listing with no reviews yet, and it is not covered by AppSumo's We Got Your Back guarantee. Tier 1 has no API access, and unused credits do not carry over.
What you get
Tier 1 gives lifetime access for a one-time $29. The store page lists 3,000 verifications per day and 75,000 credits per month. One verification costs one credit, a successful find costs three, and a find with no result is free.
You can bulk upload 10,000 names and domains at once. Catch-all domains are reported as their own status instead of being marked valid. According to Mailsfinder, verification accuracy is 99%.
How the price compares
The listed regular price is $120, so $29 saves $91, or 76%. Tier 2 costs $49 for 5,500 daily verifications and 130,000 monthly credits. The REST API starts at Tier 3, which is $149. You can upgrade or downgrade between the 4 tiers.
What to check first
Mailsfinder was founded in June 2025 and has no reviews on the page yet. As a Radar listing, AppSumo has not fully vetted its claims, though the 60-day refund still applies.
You must activate the license within 60 days of purchase. Daily and monthly limits reset on their own schedule, and unused credits do not roll over. If you need API access or automation through the API, Tier 1 will not cover it.