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Compare: Apollo.io vs Sigstr
A side-by-side analysis to help you find the right tool.
Apollo.io
Freemium
(Under $50/mo)
Free tier available (limited credits)
View Details
Sigstr
Custom Quote
($200–$1,000/mo)
No
View Details
Key Differences
Pricing Model
Apollo.io
Freemium
Sigstr
Custom Quote
Budget Tier
Apollo.io
Under $50/mo
Sigstr
$200–$1,000/mo
Free Trial
Apollo.io
Free tier available (limited credits)
Sigstr
No
Company Size Fit
Apollo.io
Solo / Freelancer, Small Team (2–20), Mid-Market (20–200)
Sigstr
Small Team (2–20), Mid-Market (20–200), Enterprise (200+)
Business Type Fit
Apollo.io
B2B
Sigstr
B2B, Enterprise, Agency
Target Channels
Apollo.io
LinkedIn, Email Lists
Sigstr
Demand Generation Managers, Content Marketers, Brand Managers
Best For
Apollo.io
Startups and SMBs wanting B2B data + sales engagement in one affordable tool
Sigstr
B2B marketing teams wanting to maximize brand reach and targeted messaging through employee email signatures.
Pros
Apollo.io
Incredible value for the price
combines ZoomInfo-like data with Outreach-like sequencing
generous free tier
easy to use
Sigstr
Turns everyday communication into an ABM touchpoint
Easy centralized management of signatures across the company
Dynamic banner targeting based on recipient domain
Cons
Apollo.io
Contact data accuracy is slightly below ZoomInfo for enterprise roles
intent data is basic
primarily a sales tool, not marketing orchestration
Sigstr
Requires employee adoption for maximum effectiveness
Limited tracking granularity compared to dedicated ad platforms
What They Share
