Proofy vs Seamless.AI: Data Enrichment Tool Comparison

Proofy vs Seamless.AI: Data Enrichment Tool Comparison

If you are comparing B2B lead data and contact enrichment tools, Proofy and Seamless.AI will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.

The Quick Answer

By each vendor's own wording, Proofy lists bulk email verification and single verification in real time, while Seamless.AI lists real-time b2b contact search engine and email and cell phone lookups. A capability both offer can appear under different names, so read both feature lists below.

Seamless.AI offers a lower entry point at $0/mo compared to Proofy at $5/mo.

If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.

Understanding the Core Difference

Proofy is 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.

Seamless.AI is AI-powered sales lead platform with real-time contact search engine, pitch intelligence, and data enrichment for B2B prospecting.

The two platforms take different approaches to solving the same core challenge.

Pricing Comparison

Usage-basedProofy entry plan

Trial pack

FreeSeamless.AI entry plan

Free

Proofy Pricing (as of September 2026)

Source: Proofy Pricing

Seamless.AI Pricing (as of September 2026)

Source: Seamless.AI Pricing

Pricing Analysis

Seamless.AI offers the lower entry point ($0/mo vs $5/mo). Teams watching their budget will appreciate the savings, especially when starting out.

Proofy offers 4 pricing tiers compared to Seamless.AI's 3, giving you more granularity as you scale.

Seamless.AI includes a free tier, which is helpful for evaluating the platform without upfront cost.

Features Breakdown

Proofy lists

• Bulk email verification
• Single verification in real time
• Email verifier API
• Duplicate email remover
• ISP detection
• Disposable and temporary detection
• and 4 more listed below

Seamless.AI lists

• Real-time B2B contact search engine
• Email and cell phone lookups
• Pitch intelligence
• Data enrichment
• Buyer intent data (add-on)
• Job changes tracking (add-on)
• and 4 more listed below

Proofy Key Features

• 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

Seamless.AI Key Features

• Real-time B2B contact search engine
• Email and cell phone lookups
• Pitch intelligence
• Data enrichment
• Buyer intent data (add-on)
• Job changes tracking (add-on)
• Autopilot list building (add-on)
• AI writing assistant
• Chrome extension
• Enterprise security and compliance

The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.

Listed only by Proofy

• 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

Listed only by Seamless.AI

• Real-time B2B contact search engine
• Email and cell phone lookups
• Pitch intelligence
• Data enrichment
• Buyer intent data (add-on)
• Job changes tracking (add-on)
• Autopilot list building (add-on)
• AI writing assistant
• Chrome extension
• Enterprise security and compliance

Integration Ecosystem

Proofy Integrations

Proofy connects with: .

Seamless.AI Integrations

Seamless.AI connects with: Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Zapier.

Integrations listed only by Seamless.AI: Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Zapier.

Use Case Recommendations

Best Fit for Proofy

• Budget-conscious teams looking for an affordable data enrichment tool
• Enterprise buyers who prefer custom pricing and dedicated support
• Revenue operations teams building targeted prospect lists
• Marketing teams enriching CRM data for segmentation

Best Fit for Seamless.AI

• Budget-conscious teams looking for an affordable data enrichment tool
• Organizations with complex tech stacks needing broad integration support (7 integrations)
• Teams that want to start free and scale up as needs grow
• Enterprise buyers who prefer custom pricing and dedicated support

Feature Comparison Summary

Getting Started Checklist

1. Define your B2B lead data and contact enrichment requirements and monthly budget
2. Estimate your expected data credits or contact lookups to find the right tier
3. List the integrations your team currently relies on
4. Sign up for free trials or demos of both platforms
5. Run a small test with each tool before making a commitment
6. Evaluate the onboarding experience and support quality

Final Thoughts

Proofy and Seamless.AI both serve the B2B lead data and contact enrichment market. Seamless.AI offers a more accessible entry point, while Proofy starts at $5/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.

Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.

Pricing and features verified as of September 2026. Visit Proofy and Seamless.AI for current information.