Clearout Email Verification vs InboxTrue

Clearout Email Verification

Figure	Clearout Email Verification	InboxTrue
Price from	—	Free
Free plan	—	Yes
Free trial	—	—
Open source	—	—
Web	Yes	Yes
API	Yes	Yes
Plans published	4	3
Spec score · Email Verification APIs	8.1 (#6)	7.9 (#10)
Data handling	Clearout says verified list data is encrypted in transit and at rest, is not shared, and is automatically deleted after 30 days.	Submitted email addresses and results may be cached, stored in validation history, and used to improve service accuracy; the policy says they are not sold.
Headquarters	San Francisco, California, United States	United States
Integrations	The integrations directory lists connections including HubSpot, Apollo, Kit, Mailchimp, ActiveCampaign, Zapier, Make, Google Sheets, and WordPress forms.	The maker describes integration through a REST API but does not name third-party app integrations on the opened pages.
Support	Clearout advertises 24/7 support with experts on its pricing page.	Enterprise customers can request dedicated support, and the API documentation says customers can contact InboxTrue about higher rate limits.
Validation checks	Clearout says it performs more than 20 validation checks, including syntax, catch-all, disposable address, role-based address, MX record, and SMTP checks.	The service checks syntax, DNS/MX, SMTP mailbox existence, disposable addresses, and catch-all domains.

Clearout Email Verification has no write-up on Specifiction yet; its figures are above.

InboxTrue has no write-up on Specifiction yet; its figures are above.