ContactOut vs Seamless.ai
On the evidence we track, ContactOut leads this comparison with a composite score of 65/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for lead generation. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
ContactOut
LeaderNot documented yet.
Seamless.ai
A lead generation and contact discovery tool that helps sales teams find accurate phone numbers and email addresses for business decision-makers, with deep integration into CRM systems and sales workflows.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
ContactOut
LeaderFreemium model: free tier with limits, then $49/month (emails) or $199/month (emails + phones)
- FreeFree
- 5 emails per day
- 5 phones per day
- 5 exports per day
- Search Portal access
- Email$49/month for unlimited emails
- Unlimited emails
- 300 exports per month
- Email campaigns
- List builder
- Plus everything in free plan
- Email + Phone$199/month for unlimited emails and phones
- Unlimited emails
- Unlimited phones
- 600 exports per month
- Data enrichment
- AI Email Writer
- +1 more
- Team/APIContact sales
- API Access
- 20% more data coverage
- Bulk license 700M+ profiles
- Recruiter Pro compatible
- Salesforce + ATS integrations
- +2 more
Seamless.ai
Free tier available. Pro and Enterprise pricing available via sales contact.
- FreeFree
- Email addresses
- Cell phones
- Real-time search
- Export download
- ProContact sales
- Email addresses
- Cell phones
- Real-time search
- Unlimited exports
- Enterprise security and compliance
- +10 more
- EnterpriseContact sales
- Unlimited users
- Custom feature packages
- Dedicated success manager
- Quarterly business reviews
- Phone support
- +1 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Salesforce
- HubSpot
- Greenhouse
- Zapier
- Zoho
- Pipedrive
ContactOut
Leader- Lever
- Bullhorn
- Airtable
- Mailchimp
Seamless.ai
- Salesloft
- MS Dynamics
- Okta
- Microsoft Dynamics
- Keap
- Insightly
- Close
- Copper
- FreshSales
- Outreach
- n8n
- Mixmax
- Cloze
- Claude
- ChatGPT
- SugarAI
- Breeze Prospecting Agent
ContactOut or Seamless.ai: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.