Last updated: August 4, 2026
EVA (verifications.email) and ZeroBounce both verify whether an email address can receive mail before you send to it. ZeroBounce is the established choice: a broad deliverability platform with validation, inbox placement tests, DMARC monitoring, and a large integrations ecosystem, built mainly for marketing teams. EVA is a developer-focused verification API with lower prices and a self-hosted option. The sharpest differences are price, depth, and hosting. ZeroBounce's published pay-as-you-go rate is $6.49 per 1,000 at the 100,000-credit tier, while EVA's 100,000 credit pack works out to $2.00 per 1,000. EVA runs 28 checks per address, including provider-specific SMTP verification for Google, Microsoft, and Yahoo mailboxes. ZeroBounce offers no self-hosted deployment; EVA sells a one-time self-hosted license from $4,995. Both providers offer credits that never expire, and neither charges for unknown results. EVA also includes a free tier of 300 verifications per month, three times ZeroBounce's 100.
ZeroBounce sells pay-as-you-go credits on a sliding volume scale. Its published pricing as of August 2026 lists $0.0195 per credit at 2,000 credits, $0.0129 at 10,000, $0.00649 at 100,000, and $0.003199 at 1,000,000. ZeroBounce also sells a ZeroBounce ONE subscription at $99 per month for 10,000 monthly credits. EVA prices are the live rates from the EVA pricing page: subscriptions from $19 per month and credit packs from $5.
| Volume | ZeroBounce (pay as you go) | EVA subscription | EVA credit packs |
|---|---|---|---|
| 1,000 emails | No 1,000 tier; minimum purchase is 2,000 credits at $39 ($19.50 per 1,000) | Starter $19/mo includes 5,000 ($3.80 per 1,000) | $5 (1K pack, $5.00 per 1,000) |
| 10,000 emails | $129 ($12.90 per 1,000) | Pro $49/mo includes 30,000 ($1.63 per 1,000) | $40 (two 5K packs, $4.00 per 1,000) |
| 100,000 emails | $649 ($6.49 per 1,000) | Business $149/mo includes 100,000 ($1.49 per 1,000) | $200 (100K pack, $2.00 per 1,000) |
| 1,000,000 emails | $3,199 ($3.20 per 1,000) | Enterprise, custom pricing | $1,200 (1M pack, $1.20 per 1,000) |
ZeroBounce figures are its published pricing as of August 2026, from zerobounce.net/pricing and its billing documentation. Check the vendor's site before purchasing; prices change.
The largest structural difference is the self-hosted license. Beyond that, EVA publishes exactly what each verification runs: 28 checks per address, with dedicated SMTP strategies for Google, Microsoft, Yahoo, Apple, ProtonMail, Zoho, and other major providers, plus catch-all scoring and domain-level deliverability grading. ZeroBounce and EVA agree on two customer-friendly policies: neither charges for unknown results, and neither expires credits.
| Feature | EVA | ZeroBounce |
|---|---|---|
| Checks per email | 28 | Not published |
| Provider-specific SMTP verification (Google, Microsoft, Yahoo, Apple) | Yes | Not published |
| Catch-all handling | Scored, with M365 and Yahoo resolution | Detects catch-all status |
| Unknown results charged | Never | Not charged (per its pricing page) |
| Credits expire | Never | Never |
| Free tier | 300/mo | 100/mo |
| GDPR / DPA | Yes, DPA available | Advertises GDPR compliance |
| Self-hosted option | Yes, one-time license from $4,995 | No |
| SDKs | JavaScript and Python | Yes, multiple languages |
| Bulk upload | 50,000 emails per upload | Yes |
No. ZeroBounce is available only as a cloud service, so every verification is billed per credit and every address you check passes through its infrastructure. EVA offers both: the same cloud API, and a self-hosted deployment license from $4,995 one-time. The self-hosted version runs the full 28-check engine on your own servers with Docker, unlimited volume, and zero per-email cost. For teams verifying hundreds of thousands of emails a month, or teams that cannot send customer email addresses to a third party, this is the option no mainstream cloud verifier sells.
An honest comparison cuts both ways. ZeroBounce is the stronger pick if:
Yes, at every published volume. ZeroBounce's pay-as-you-go rate is $12.90 per 1,000 at 10,000 credits and $6.49 per 1,000 at 100,000 credits (published pricing as of August 2026). EVA's credit packs run from $5.00 per 1,000 down to $1.20 per 1,000, and the Pro subscription works out to $1.63 per 1,000.
No. ZeroBounce states that credits never expire, and EVA credits never expire either. On this point the two services match. The price you pay per credit is where they differ.
No. ZeroBounce's pricing page states that unknown validation results do not use credits, and EVA has the same policy: if a verification cannot be resolved to a definitive answer, you are not charged.
No. ZeroBounce is a cloud-only service. EVA sells a self-hosted deployment license from $4,995 one-time, which runs the same 28-check engine on your own servers with unlimited verifications and no per-email cost.
Export your list from ZeroBounce as CSV, create a free EVA account with 300 verifications per month, and upload the file or call the API. EVA accepts up to 50,000 emails per bulk upload and ships JavaScript and Python SDKs, so most API migrations are a small code change.
Run the same list through both. 300 free verifications every month, no credit card, and unknowns are never charged.
Also comparing tools? Read EVA vs NeverBounce.