ZeroBounce returns a deliverable or undeliverable result. VerifyFlow gives you SAFE, PROTECTED, RISKY, or DEAD — plus real SMTP probes, and credits that never expire.
Try VerifyFlow FreeHow VerifyFlow and ZeroBounce compare on the things that decide deliverability.
| Feature | VerifyFlow | ZeroBounce |
|---|---|---|
| Catch-all handling | SAFE / PROTECTED / RISKY / DEAD verdict | AI confidence score (charged) |
| Price per credit at 10K | $0.004 / credit | $0.008 / credit |
| Minimum purchase | $9.99 / 2,500 credits | $39 / 2,000 credits |
| Free tier | 500 credits | 100 / month |
| Credits expire | Never | No |
ZeroBounce pricing and features shown are as of June 2026 — verify current rates at zerobounce.net/pricing. Catch-all false-positive figure: independent test by Allegrow, February 2026.
ZeroBounce charges credits for catch-all addresses and returns an AI confidence score rather than a concrete send/hold verdict. Independent testing (Allegrow, February 2026) reported an 8.1% false-positive rate on catch-all addresses. VerifyFlow assigns the same addresses a SAFE, PROTECTED, RISKY, or DEAD label.
Per-credit pricing at common volumes.
| Volume | VerifyFlow | ZeroBounce |
|---|---|---|
| 1,000 credits | $0.004 / credit ($9.99 for 2,500, PAYG) | $0.0195 / credit ($39 for 2,000 min) |
| 10,000 credits | $0.004 / credit (PAYG) | $0.008 / credit |
| 50,000 credits | $0.0027 / credit (Pro, 75,000 for $199) | Volume pricing — verify at zerobounce.net |
Competitor pricing as of June 2026. Verify current rates at their official website.
Score your list SAFE, PROTECTED, RISKY, or DEAD and know exactly what to send.
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