ZeroBounce

ZeroBounce Email Validation & Deliverability: Free

Free tier available to all registered ZeroBounce accounts. Provides 100 email validation credits per month (replenishing monthly) and 10 Email Finder queries per month. Also includes 1 Blacklist Monitor, 1 Inbox Placement Test, and 1 Email Server Test per month. Credits never expire. Suitable for testing the platform or very low-volume validation needs.

ZeroBounce Email Validation & Deliverability: Pay-as-You-Go Credits

Prepaid credit purchase model with no recurring subscription. Credits are purchased in blocks and never expire. Minimum purchase is 2,000 credits. Credits are usable for Email Validation (1 credit/email), AI Scoring (1 credit/email), Activity Data (1 credit/email), and Email Finder (20 credits per successful query). Price per credit decreases with volume. No charge for 'unknown' results or duplicate removal.

ZeroBounce Email Validation & Deliverability: ZeroBounce ONE™

All-in-one email deliverability subscription launched September 2025. Bundles monthly email validation credits (replenishing, rolling over) with the full ZeroBounce deliverability toolkit: Email Warmup, DMARC Monitor, Blacklist Monitor, Inbox Placement Testing, Email Server Testing, and Email Finder queries. Starts at $99/month (or $79/month billed annually). Subscribers also receive a 15% discount on additional PAYG credit purchases.