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Apollo.io vs Seamless Comparison (2026)

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Good recommendations?

Apollo.io

Seamless

Overview

Cloud-based B2B sales intelligence platform with a 240M+ contact database, multi-channel outreach, and AI-driven engagement tools.

Seamless.AI is an inside sales and lead generation software that helps businesses find relavant contacts, build account lists, manage prospect information, and more from within a unified platform. It allows staff members to utilize the built-in search engine to extract business contact details based on company names, employee designations, roles, and seniority.

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Video & Screenshots

No videos yet

Pricing

Starting from

/user

Per month

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

Free

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.5

399

271

Value for money

Ease of use

Features

Customer support

83%

would recommend this app

4.5

603

466

Value for money

Ease of use

Features

Customer support

84%

would recommend this app

Pros

“I found it to be a powerful tool for lead generation and prospecting, with a large contact database and useful filtering options. While there was a bit of a learning curve at first, the platform offers a lot of value for sales and marketing professionals.”

Lily H.

Business Marketing

“Apollo occasionally struggles with poor data hygiene, and although there are plenty of 3rd party data sources you can incorporate into your Apollo instance to use credits to "waterfall" through these sources to find prospect or company data.”

Nicholas P.

Account Development Manager

“The Chrome extension is especially useful for quickly pulling verified contact data from LinkedIn in real time, which helps streamline daily prospecting workflows.”

Shasta W.

Director of Sales Support

Pros

“I work across consulting and B2B media, so I'm constantly building targeted contact lists, and being able to pull verified emails and direct dials right from a prospect's profile, without bouncing between tabs, has genuinely changed how fast I can put a campaign together.”

Ravi, R.

Engineer,

“AI is its real-time search engine, which completely changes how I prospect because it researches contact information across the web the exact moment I request it, rather than pulling from a stale, pre-downloaded database.”

Jan S.

Owner, Chief Researcher

“Seamless AI provided access to a large contact database, helped find verified contact information faster, and reduced the amount of manual research needed.”

VIVEK C.

Founder

Cons

“The key and only issue with the platform is that after you clean your leads or check off the option the only show verified emails, your total list reduces by like 20%”

Toni M.

Director of Market Research

“Without Ai chat, optimizing or enriching Works of credits after your credits are gone is brick tool, you can’t use it.”

Zaro D.

Owner

“Some emails can bounce or be missing, and the interface can feel a little busy when I only need quick validation.”

Ellie A.

Co-Founder

Cons

“AI is its inconsistent data accuracy, which frequently results in frustrating 20% to 30% email bounce rates because its real-time engine lacks a strict multi-source "waterfall" verification process to catch outdated records.”

Jan S.

Owner, Chief Researcher

“Worst of all, their billing and cancellation practices are a total nightmare; they strictly enforce hidden 60-day auto-renewal notice policies that lock you into unexpected, non-refundable 12-month contract extensions that customer support refuses to waive.”

Jan S.

Owner, Chief Researcher

“I find that completely unacceptable. If your cancellation procedure requires the customer to submit a request and then wait for YOUR billing department to contact them, your company should not benefit when your billing department fails to make that contact.”