Proofy vs SmartWriter
A factual comparison of features, pricing, and capabilities.
Proofy
Proofy is an email verification service for bulk list cleaning and real-time single verification through an API, with SMTP, syntax, domain, disposable and accept-all detection. Credits are sold pay-as-you-go or by subscription, never expire, and unknown results are not charged.
SmartWriter
SmartWriter is an AI tool that writes personalised cold email opening lines and outreach copy from a lead's LinkedIn profile and web presence, used for sales outreach, SEO backlink outreach and copywriting. Plans are monthly credit allowances of leads with roll-over.
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
Feature comparison.
| Feature | Proofy | SmartWriter |
|---|---|---|
| Bulk email verification | ||
| Single verification in real time | ||
| Email verifier API | ||
| Duplicate email remover | ||
| ISP detection | ||
| Disposable and temporary detection | ||
| Accept-all detection | ||
| Syntax validation | ||
| SMTP verification | ||
| Mailbox full detection | ||
| Personalised cold email lines per lead | ||
| AI outreach and copywriting tools | ||
| SEO backlink outreach | ||
| AI social media content generator | ||
| AI content generator | ||
| Credit roll-over |
Native integrations.
Proofy
SmartWriter
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Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.