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BuiltWith vs Seamless Comparison (2026)

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4.7

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Good recommendations?

BuiltWith

Seamless

Overview

BuiltWith is a website profiler, lead generation, and business intelligence tool providing technology adoption, eCommerce data and usage analytics for the internet. It helps create lists of websites using particular web technologies and also lists of websites within specific ecommerce categories.

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

Pricing

Starting from

295

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

4.2

Value for money

Ease of use

Features

Customer support

68%

would recommend this app

4.5

600

465

Value for money

Ease of use

Features

Customer support

84%

would recommend this app

Pros

“The authentication part makes the process time consuming. As when we start doing our research, we are on the go, and it would be great if you guys could consider removing the authentication process.”

Jahnvi K.

Associate manager

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,

“Its core strength lies in its real-time data search capability, which allows users to access updated contact information instead of relying only on static databases.”

Alizaheer V.

key associate manager

“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

Cons

“Requires training to be able to use it, not at all an easy platfom.”

Asif M.

Sales and Marketing Director

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.”