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Seamless vs ZoomInfo Operations Comparison (2026)

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Good recommendations?

Seamless

ZoomInfo Operations

Overview

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.

ZoomInfo OperationsOS gives your team access to the best engagement-ready B2B data and intelligence, paired with data quality automation and orchestration tools.

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

Free

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

No pricing info

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.5

603

466

Value for money

Ease of use

Features

Customer support

84%

would recommend this app

4.3

105

Value for money

Ease of use

Features

Customer support

69%

would recommend this app

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

Pros

“The occasional personal mobile number makes it worth using. But other products are more current”

David M.

Expert Witness Researcher

“Good to use if it's already part of your tech stack, but not necessarily worth it if you're a smaller business looking to grow lean.”

Diana B.

Founder

“A great adjunct to other databases.”

David M.

Expert Witness Researcher

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.”