Feature Comparison
Pricing Comparison
ZeroBounce starts at $16 for 2,000 credits. SendSure starts at $5 for 1,000 credits — nearly 40% cheaper per email at entry level.
Why teams switch to SendSure
27 stages vs ~8-10
SendSure's verification engine runs 27 distinct checks including AI-powered catch-all resolution, multi-signal validation, and engagement history analysis. Most competitors stop at basic SMTP handshake.
AI catch-all resolution
Our 54,000+ name database and cross-referencing with Gravatar, GitHub, and HIBP means we can resolve catch-all addresses that other services mark as "unknown."
Lower entry price
Start at $5 for 1,000 credits vs ZeroBounce's $16 for 2,000. Our per-email cost is competitive at every tier and gets as low as $0.0007/email at 1M volume.
GOD Rule transparency
SendSure's GOD Rule means we never claim certainty where none exists. If we can't determine a definitive result, we tell you — and we don't charge for unresolved emails.
Frequently Asked Questions
Is SendSure as accurate as ZeroBounce?
SendSure uses a 27-stage verification engine compared to ZeroBounce's ~8-10 stages. Our multi-signal approach and AI catch-all resolution provide more nuanced and accurate results, especially for difficult-to-verify addresses.
How does pricing compare?
SendSure starts at $5 for 1,000 credits. ZeroBounce starts at $16 for 2,000 credits ($0.008/email vs our $0.005/email). At higher volumes, both services offer competitive rates.
Can I migrate from ZeroBounce to SendSure?
Yes. Export your list from ZeroBounce as CSV and upload it to SendSure for re-verification. Our API is also RESTful and easy to swap into existing integrations.
Does SendSure have SOC 2 certification?
SendSure uses 256-bit TLS encryption and is fully GDPR compliant. Our infrastructure runs on Google Cloud Platform with enterprise-grade security.