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 Kickbox
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
Kickbox
Email verification and deliverability
check Easy to use interface
check 98% claimed accuracy
check Proprietary SendEx quality score
close Vague "risky" results without enough detail to make decisions
close Costs add up quickly for larger lists
Key differences that set them apart
close Clearout | close Kickbox | |
|---|---|---|
| Pricing Model | Premium credit-based pricing that can become expensive for high-volume users. | Hybrid model with monthly subscriptions or pay-as-you-go, costs add up for large lists. |
| Validation Speed | Fast verification with 20+ validation checks per email. | Fast real-time verification API, though SMTP verification can be slow with some domains. |
| User Interface | Modern interface with AI verdict feature for email quality assessment. | User-friendly interface with proprietary SendEx quality score for each email. |
| API and Integrations | 30+ integrations with unique Apollo.io native integration. | Excellent integrations with MailChimp, HubSpot, SendGrid, Marketo, and more. |
| Validation Accuracy | AI-powered verdict feature provides quality scoring beyond simple pass/fail. | Claims 98% accuracy but users report vague "risky" classifications. |
Pricing comparison
Clearout | Kickbox | |
|---|---|---|
| Validate 50k email list | $290 | $159 |
| Validate 100k email list | $500 | $300 |
| 50k API validations | $290 | $159 |
| 100k API validations | $500 | $300 |
Looking for a better alternative?
Instead of choosing between Clearout and Kickbox, 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.