Lead Onion vs Proofy
A factual comparison of features, pricing, and capabilities.
Lead Onion
Buyer intent platform that combines person-based, account-based and website-based intent (topic intent via Bombora, Foundry or Continuity, competitor engagement, events, technologies) with contact reveals and an AI buyer-intent agent, syncing leads into HubSpot, Salesforce, Microsoft Dynamics, Outreach and Slack.
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.
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
Feature comparison.
| Feature | Lead Onion | Proofy |
|---|---|---|
| Person Based Intent | ||
| Account Based Intent | ||
| Website Based Intent | ||
| Research Quadrant | ||
| Watchlist | ||
| Account Level Intent | ||
| Topic Intent | ||
| Competitors | ||
| Events | ||
| Technologies | ||
| In-Market Accounts | ||
| Prospects Search | ||
| 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 |
Native integrations.
Lead Onion
Proofy
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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.