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Apollo.io vs Seamless.AI

Updated June 2026 · A structured head-to-head comparison.

B2B database plus sales engagement in one.

Real-time search engine for B2B leads.

The verdict

Both Apollo.io and Seamless.AI are credible sales intelligence tools, and the right pick comes down to your priorities.

Choose Apollo.io if you want a higher overall rating (4.6/5). B2B database plus sales engagement in one.

Seamless.AI — Real-time search engine for B2B leads.

Apollo.io vs Seamless.AI: side by side

DimensionApollo.ioSeamless.AI
Starting priceFree – $49/user/moFree
Free planYesYes
Pricing modelFreemiumFreemium
Best forSmb, Sales Teams, StartupsSmb, Sales Teams
PlatformsWeb, ApiWeb, Api
Rating4.6/5Winner4.2/5

Apollo.io key facts

Vendor
Apollo.io
Pricing
Freemium — Free – $49/user/mo
Free tier
Yes
Platforms
Web, Api
Best for
Smb, Sales Teams, Startups
Editor rating
4.6 / 5
Founded
2015
Headquarters
San Francisco, USA

Seamless.AI key facts

Vendor
Seamless.AI
Pricing
Freemium — Free
Free tier
Yes
Platforms
Web, Api
Best for
Smb, Sales Teams
Editor rating
4.2 / 5
Founded
2015
Headquarters
Columbus, USA

Frequently asked questions

Is Apollo.io better than Seamless.AI?

Neither is universally better — Apollo.io edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.

Is Apollo.io or Seamless.AI cheaper?

Apollo.io is the more affordable of the two to get started, at free – $49/user/mo. Apollo.io starts at free – $49/user/mo; Seamless.AI starts at free.

Can Apollo.io replace Seamless.AI?

Yes for most teams — both are sales intelligence tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.