BillionVerify
6.5#11 in email verification apisFrom $8 a yearFree planWebAPI
VisitBillionVerify vs MailboxValidator
MailboxValidator
6.8#2 in email verification apisFree planFree planWebAPI
VisitWhat both publish
| Fact | BillionVerify | MailboxValidator |
|---|---|---|
| Integrations | The maker lists integrations including Gmail, HubSpot, Mailchimp, Salesforce, Slack, Pipedrive, Zapier, Make, and Integrately. | Listed integrations include Zapier, Make, MailChimp, AWeber, Mailgun, SendGrid, Campaign Monitor, SparkPost, HubSpot, MailerLite, Constant Contact, VerticalResponse, MooSend, Mailjet, iContact, ActiveCampaign, Intercom, Autopilot, ChatGPT, and MCP. |
| Purpose | BillionVerify verifies individual email addresses and cleans email lists for deliverability workflows. | MailboxValidator checks email addresses and mailboxes to identify invalid addresses and help reduce email bounces. |
| Security | The security overview states that HTTPS/TLS protects website, dashboard, and API traffic, and that the company does not currently maintain a completed SOC 2 attestation. | Hexasoft says it maintains technical, administrative, and physical measures reasonably designed to help protect personal data from unauthorized processing. |
| Support | Support is available by email at [email protected]. | The privacy policy lists [email protected] and says to allow up to four weeks for a reply to privacy inquiries. |
BillionVerify plans
- Free PlanFree
- Yearly$8 a year
- White Label PartnerPriced on request
MailboxValidator plans
- API-FREEFree
- API-FREE+Free
- BULK-TRIALFree
- BULK-1$19.95, paid once
- BULK-5$39.95, paid once
- BULK-10$59.95, paid once
Pick BillionVerify if…
You want what its maker publishes above — check its page for the details.
Pick MailboxValidator if…
It suits teams that need to check individual email addresses or validate uploaded lists. Developers can also use its API and linked language libraries.