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Seamless vs Kanbox Comparison (2026)

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Seamless

Kanbox

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.

Kanbox enables you to export prospects from LinkedIn and Sales Navigator, find their professional emails, obtain clean and non-duplicated data, automate your B2B lead generation campaigns, develop and organize your network effectively, and communicate with your prospects in an intuitive interface.

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

Free

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

/user

Per month

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

4.8

Value for money

Ease of use

Features

Customer support

93%

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

“It is designed in a smart way, that offers both: an easy and comprehensive overview on your activities as well as time-saving activities”

Gerhard A.

Trainer - Coach

“Connected to LinkedIn, we can run campaigns to find candidates for our current roles (as a recruiter).”

Glen S.

Director

“I'm using it for my personal use transitioning careers and using it to create meaningful contacts, pipelines for engagement, and personal workflows so I don't forget critical tasks that I have to complete.”

Ken H.

Colonel

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.”