Head to head · 4 tools

Apollo.io vs ContactOut vs Gong vs Seamless.AI

Starting price

$49/month

Starting price

—

Starting price

Starting price

$99/month

Attribute	Apollo.io	ContactOut	Gong	Seamless.AI
Category	Sales Intelligence & Lead Generation	Email & Messaging Marketing	Sales & Revenue	Sales & Revenue
Pricing	Free tier	Paid	Paid	Free tier
Starting price	$49/month	—	$1	$99/month
Free tier	Yes	No	No	Yes
Free trial	Unknown	No	No	No
Deployment	—	—	Cloud	Cloud
API available	Yes	Unknown	Unknown	Unknown
Platforms	—	—	—	—
Certifications	3	—	6	—
Integrations	—	6	22	—
Company	Founded 2015	—	Founded 2015	—
Feature attributes
Sso Saml	✓ Yes	— Unknown	— Unknown	— Unknown
Rbac	— Unknown	— Unknown	✓ Yes	— Unknown
Mobile App	— Unknown	— Unknown	— Unknown	— Unknown
Webhooks	— Unknown	— Unknown	— Unknown	— Unknown
Data Export	✓ Yes	— Unknown	— Unknown	— Unknown
Contact Database Size	— Unknown	— Unknown	— Unknown	— Unknown
Email Finder	✓ Yes	— Unknown	— Unknown	— Unknown
Phone Numbers	✓ Yes	— Unknown	— Unknown	— Unknown
Intent Data	✓ Yes	— Unknown	— Unknown	— Unknown
Chrome Extension	✓ Yes	— Unknown	— Unknown	— Unknown
Sales Engagement	— Unknown	— Unknown	✓ Yes	— Unknown
Conversation Intelligence	— Unknown	— Unknown	— Unknown	— Unknown
Dialer	— Unknown	— Unknown	— Unknown	— Unknown
Forecasting	— Unknown	— Unknown	✓ Yes	— Unknown
Email Tracking	— Unknown	— Unknown	— Unknown	— Unknown

Also consider

Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.