Apollo.io vs Seamless.AI
Side-by-side from the Top 11 rankings of The 11 Best Email Finder Tools and The 11 Best Sales Intelligence Platforms. Last verified June 17, 2026.
The short answer
Apollo.io ranks higher on Top 11 (#2 vs #8) for Sales and marketing teams finding verified business email addresses / Sales reps finding buyer intent signals and prospect data. A complete prospecting platform with a massive database and built-in sales tools.
At a glance
| Apollo.io | Seamless.AI | |
|---|---|---|
| Top 11 rank | #2 / The 11 Best Email Finder Tools | #8 / The 11 Best Sales Intelligence Platforms |
| Score (out of 9.4) | 9.1 | 7.7 |
| Best for | All-in-one sales platform | Real-time data verification |
| Pricing | $$ ($49 to $99/mo) | $$ ($65 to $150/mo/user) |
| HQ | San Francisco, USA | Columbus, USA |
| Founded | 2015 | 2018 |
Apollo.io
A complete prospecting platform with a massive database and built-in sales tools.
www.apollo.ioSeamless.AI
Focuses on a real-time verification engine to ensure data accuracy at the point of capture.
www.seamless.aiMethodology and scoring weights live at /methodology. No vendor pays for placement — see about.