View all B2B Sales Intelligence / Leads Alternatives
Best Free Alternatives to Seamless.ai
Stop paying $147/mo (Basic Tier). Discover professional-grade tools that won't break your budget.
Category: B2B Sales Intelligence / LeadsVerified for 2025
Top Recommended Replacements
Apollo.io
FREEBest All-in-One Alternative
Why we like it
The 2025 market leader; combines a 275M+ contact database with a built-in email sequencer, dialer, and LinkedIn automation; the free plan offers 1,200 email credits/year; much more transparent pricing than Seamless.
Keep in mind
Data accuracy for niche international markets can be hit-or-miss.
Clay
FREEBest for Data Accuracy (Waterfall)
Why we like it
The 'Power User' choice; uses AI to 'Waterfall' search across 75+ data providers (including Apollo, Hunter, and PeopleDataLabs); if one source fails, it checks the next, ensuring the highest possible find rate for verified emails.
Keep in mind
Steeper learning curve; requires a 'credit' mindset for every enrichment step.
Derrick App
Best for Google Sheets Users
Why we like it
A 2025 standout that turns Google Sheets into a prospecting hub; uses AI (Claude/OpenAI) to enrich leads directly in your spreadsheet; incredible value for solo founders and small teams.
Keep in mind
Requires you to bring your own API keys for some advanced AI features.
Lusha
FREEBest for Phone Numbers
Why we like it
Industry-leading accuracy for direct-dial mobile numbers; excellent Chrome extension that works instantly on LinkedIn profiles; much easier cancellation process than Seamless.
Keep in mind
Database is smaller than Apollo or ZoomInfo.
Hunter.io
FREEBest for Email Discovery
Why we like it
The gold standard for finding professional email addresses via domain search; includes a bulk email verifier to protect your sender reputation; highly reliable data sources.
Keep in mind
Does not provide phone numbers or deep social media insights.
Instantly.ai (Leads)
Best for High-Volume Cold Email
Why we like it
If your goal is sending thousands of emails, Instantly's lead finder is perfectly synced with their 'Warmup' and 'Sequencing' tools; offers 450M+ verified contacts.
Keep in mind
Focuses primarily on email; less effective for phone-heavy sales teams.
FindThatLead
FREEBest for Social Prospecting
Why we like it
Excellent at finding emails from social media URLs and local business directories; includes a 'Social Search' feature that is faster than manual scraping.
Keep in mind
UI can feel a bit cluttered compared to Apollo or Hunter.
Prospeo.io
FREEBest for LinkedIn Exporting
Why we like it
A lightweight, 2025-optimized LinkedIn Sales Navigator scraper; very high success rate for finding 'work' emails that other tools miss; very affordable credit packages.
Keep in mind
Lacks the CRM-like lead management features of larger platforms.
Snov.io
FREEBest for Complete CRM Integration
Why we like it
Includes a full (free) CRM alongside its lead finding and email verification tools; perfect for teams that don't want to pay for Salesforce or HubSpot yet.
Keep in mind
Direct-dial data is not as robust as Lusha or ZoomInfo.
RocketReach
FREEBest for Executive Search
Why we like it
One of the largest databases for personal and professional emails; very popular among recruiters; high transparency on how data was sourced.
Keep in mind
Lacks the sales 'sequencing' and automation found in Apollo.
Instant Data Scraper
FREEBest for Zero-Cost Scraping
Why we like it
A free Chrome extension that can pull leads from Google Maps, Yelp, or industry directories; no 'credits' or monthly fees; you are only limited by your own research.
Keep in mind
Does not verify the data; you will need a separate tool like Hunter to verify the emails found.
Kaspr
FREEBest for European Compliance
Why we like it
Strong focus on GDPR-compliant data; excellent LinkedIn extension; very high direct-dial accuracy for the EMEA region.
Keep in mind
Can be expensive if you need high volumes of US-based mobile data.
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