CaptainVerify vs EmailMarker
CaptainVerify
captainverify.comEmailMarker
emailmarker.comSide by side
| Figure | CaptainVerify | EmailMarker |
|---|---|---|
| Price from | $36/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 2 | 9 |
| Spec score · Email Verification Services | 8.1 (#10) | 8.1 (#12) |
| API | API V2 integrates email verification into applications and is limited to two simultaneous connections and 50 checks per minute. | The service provides a REST JSON API with single and bulk verification endpoints, API-key authentication, and valid, invalid, or unknown results. |
| Retention | Users control retention periods, and files are kept by default for 90 days with options for 30 or 7 days. | Uploaded data is retained until the client deletes it through the dashboard or closes the account; inactive accounts may be deleted after notice following 24 months of inactivity. |
| Support | Customer support is provided by email and generally answered in less than 24 hours excluding weekends; there is no telephone support. | The privacy policy identifies Crisp as the live chat and customer support platform; pricing lists priority support with purchases. |
Plans
CaptainVerify
- On-demand mobile verification$8, paid once
- Mobile verification subscription$36 a month
EmailMarker
- Free signup creditsFree
- 1,000 email verifications$3, paid once
- 5,000 email verifications$13, paid once
- 10,000 email verifications$21, paid once
- 50,000 email verifications$84, paid once
- 100,000 email verifications$161, paid once
- 500,000 email verifications$441, paid once
- 1,000,000 email verifications$589, paid once
- 2,000,000 email verifications$999, paid once
In their own words
CaptainVerify
CaptainVerify has no write-up on Specifiction yet; its figures are above.
EmailMarker
EmailMarker verifies individual email addresses and lists to help remove invalid entries, reduce bounces, and protect sender reputation. Its checks cover syntax and typos, disposable and role-based addresses, spam traps, MX records, catch-all settings, SMTP, domain age, and a risk score. For bulk work, users can upload CSV files, review valid, invalid, risky, and unknown results, and download cleaned lists; uploads can contain up to 1 million emails. The REST JSON API supports single and bulk verification with API-key authentication, and code examples or SDKs are listed for Node.js, Python, PHP, Ruby, and Go. Integrations include Mailchimp, GetResponse, Kit, AWeber, ActiveCampaign, Klaviyo, Brevo, MailerLite, SendGrid, and Mailgun. EmailMarker is available on the web and through an API, and offers real-time form checks. The free signup includes 150 verifications at free. Paid credits are one-time purchases, starting at $3, paid once for 1,000 verifications. Results may vary and are not guaranteed to be absolutely accurate.