Features
Email list verification Developer API Advanced reporting Enhanced Validation SDKs & Libraries MCP Server Recurring Validation Chrome Extension
Use Cases
Email Verification Bulk Email Verification Email List Cleaning Real-Time Form Validation SaaS Platforms Signup Validation Import Validation Automated List Hygiene
Integrations Pricing Docs Resources
ContactEmail Verification Comparison
Clearout vs Mails.so
Comparing two popular email verification services to help you make an informed decision.
Clearout
Email validation with AI-powered insights
check 20+ validation checks with AI verdict feature
check Only service with native Apollo.io integration
check SOC 2 Type II & ISO 27001 certified for security
close Premium pricing - significantly more expensive than most competitors
close Complex plan structure with multiple tiers can be confusing
Mails.so
Modern email verification
check Modern, clean interface
check Competitive pricing
check Good for smaller lists
close Newer service with less proven track record
close Limited integration options
Key differences that set them apart
close Clearout | close Mails.so | |
|---|---|---|
| Pricing Model | Premium credit-based pricing that can become expensive for high-volume users. | Usage-based pricing with limited credits that can run out quickly for active teams. |
| Validation Speed | Fast verification with 20+ validation checks per email. | Slower performance on larger lists compared to more established providers. |
| User Interface | Modern interface with AI verdict feature for email quality assessment. | Modern and aesthetic but less optimized for bulk workflow operations. |
| API and Integrations | 30+ integrations with unique Apollo.io native integration. | Limited native integrations - mostly API-only with basic functionality. |
| Validation Accuracy | AI-powered verdict feature provides quality scoring beyond simple pass/fail. | Standard validation without advanced accuracy features for risky emails. |
Pricing comparison
Clearout | Mails.so | |
|---|---|---|
| Validate 50k email list | $290 | $149 |
| Validate 100k email list | $500 | $229 |
| 50k API validations | $290 | $149 |
| 100k API validations | $500 | $229 |
Looking for a better alternative?
Instead of choosing between Clearout and Mails.so, consider Truelist - the only email validation service with truly unlimited validations for a fixed monthly price.
Truelist
truelist.io
From $39
Truelist offers unlimited email validation with fixed pricing, advanced Enhanced Validation technology, and native integrations with 50+ platforms.
check Enhanced Validation with 2x more accurate results
check Truly unlimited validations
check Fixed predictable pricing - $39 starting price
check Modern, intuitive interface
check Native integrations with 50+ platforms
check Built for teams with dashboards and reporting
Ready to put Truelist
to the test?
Find out if Truelist is right for you in under 10 minutes.
Free plan available. No credit card required.