Choose Kaspr instead of Seamless.AI vs Apollo.io
/%5BPMM%202%5D%20-%20Boost%20pipeline/LinkedIn%20Chrome%20Extension%201%20(EN).webp?width=2000&height=1291&name=LinkedIn%20Chrome%20Extension%201%20(EN).webp)
Sign up to find out. Enter your work email to get started
(no credit card is required). 👇

Accurate European database
Kaspr connects you to the right buyer with quality data you can trust. Grow your share of the European market with fresh and accurate contact data.

Start selling on day one
With Kaspr, there’s no lengthy onboarding process. Start booking meetings in minutes with Kaspr’s LinkedIn Chrome Extension.

Call phone numbers that connect
Prospect even faster with phone numbers that actually ring. No going round the houses like with some providers.

Fits seamlessly into your tech stack
Kaspr’s plug-and-play prospecting tool integrates with LinkedIn, Sales Navigator, industry-leading CRMs, and sales dialers.
Seamless.AI vs Apollo.io: Who has better data?
Apollo.io and Seamless.AI are two sales intelligence platforms based in the US.
Let’s look at their B2B contact databases. What are the key differences between them?
1. Coverage
- Apollo.io has an extensive database not only in the US but also internationally, with millions of contact profiles outside the US.
- Seamless.AI primarily focuses on the US market; its Terms of Use restrict its suitability for other locations.
2. Database size
- Apollo.io claims to have 275 million B2B contacts and 73 million accounts.
- Seamless.AI claims to have a vast database of 1.3 billion+ business contacts and 121 million+ companies.
3. Data collection
- Apollo.io collects data from a number of sources, including a network of data contributors, public data crawling, its proprietary engagement features, and third-party data providers.
- Seamless.AI uses artificial intelligence to crawl the web in real-time and find, verify, and validate people’s contact information.
How does Kaspr compare?
- The Kaspr database spans the US, Europe and APAC.
- It has over 500 million accurate phone numbers and email addresses, making it a serious contender in the fight between Apollo.io vs Seamless.AI. It’s well worth considering if you’re comparing these two tools.
- Kaspr is also part of Cognism, which has one of the largest cell phone databases in the US. We share information between our data sets, which helps to make Kaspr’s phone numbers more accurate than the competition’s.
- When you request contact details, we check our data against 120 sources. We verify all our phone numbers and email addresses in real-time.
- G2 users praise Kaspr for being the most accurate source for emails.
Accurate global data that won't empty your wallet

“The cost isn’t important to me; what is important is the accuracy of the data”

“Our BDR loves to hit the phone”

“Kaspr is especially good for accurate phone numbers.”

Apollo vs Seamless: Who’s best on pricing?
Both sales intelligence tools follow similar, credit-based pricing models.
Let’s see how Apollo.io vs Seamless.AI pricing compares:
Apollo.io
Apollo has a transparent pricing structure which is easily found online.
It offers several paid pricing tiers with different levels of key features: Basic, Professional and Organization. All its plans have monthly credit limits. Costs start at $49 per user per month if you choose its annual plan.
Apollo also offers a free version of its platform, but this comes with limited features.
Seamless.AI
Seamless.AI’s pricing isn’t as transparent as Apollo’s or Kaspr’s, for that matter!
You can sign up for its free plan, though this has very limited features. Its other pricing plans, Pro and Enterprise, have more advanced features and more generous credits, but it doesn’t advertise how much they cost.
For custom pricing options, you’ll have to contact Seamless’s sales team for a quote.
How does Kaspr compare?
Kaspr also follows the credit system, though our plans are more generous than most - 2,400 cell phone credits on our Business plan vs 1,200 on Apollo’s equivalent Professional plan.
We also offer unlimited email credits on all paid plans, and a free plan so you can try before you buy.
What is Kaspr’s pricing?
See how Kaspr’s pricing compares against Apollo.io vs Seamless.AI 👇
$0 per month
$49 per month
$79 per month
Apollo vs Seamless: Who’s best for integrations?
Apollo.io and Seamless.AI have good integration capabilities.
This includes integrations with LinkedIn (for their Chrome Extensions), HubSpot, Salesforce, Outreach, HubSpot, and more.
Apollo offers dozens of custom integrations via its in-house app marketplace.
/Integrations/EN%20integrations/EN_integrations-integrate-in-seconds-2.webp?width=600&height=599&name=EN_integrations-integrate-in-seconds-2.webp)
How does Kaspr compare?
Kaspr integrates with many key tools in your tech stack, including HubSpot, Pipedrive, Salesforce, and more.
This means you can send Kaspr’s accurate data to your essential tools and apps, enhancing your sales efforts.
We offer seamless integrations from the Free plan onwards.
From the Starter plan up, you can connect Kaspr to most other apps using Zapier.
Our Kaspr web app offers built-in dialer integrations with Aircall and Ringover. This means you can quickly access your contacts’ phone numbers and call them directly from the Kaspr platform.
Apollo vs Seamless: Who’s best for compliance?
Apollo.io
- Apollo is GDPR-compliant and CCPA-aligned.
- It offers screening against Do Not Call (DNC) lists in the UK and USA only.
Seamless.AI
- Seamless is compliant with the CCPA only.
- It’s unclear whether or not the tool scrubs numbers against DNC lists.
How does Kaspr compare?
Kaspr doesn’t scrub against DNC lists, but we ensure alignment with the GDPR and CCPA, allowing you to prospect with peace of mind.
Our contact database undergoes continuous updates through a rigorous verification process, ensuring maximum accuracy.
Kaspr’s data comes from:
- Publicly available information: We get this from information that’s available online, including corporate websites, job postings, news feeds, and company registries.
- Partnerships with premium data providers: We’ve got carefully selected partners. This helps to make our data super-accurate and verified in real-time.
/Data/EN%20Data/EN_data-gdpr-ccpa-compliance-status-1.webp)
Where Kaspr's data comes from

Publicly available information
We get this from information that’s available online, including; corporate websites, job postings, news feeds, and company registries.

Partnerships with premium data providers
We’ve got carefully selected partners. This helps to make our data super accurate and verified in real-time.
How does Kaspr compare to Apollo.io vs Seamless.AI?
Seamless.ai vs Apollo.io: Who wins?
Apollo.io and Seamless.AI are two top B2B sales tools, but they’re best suited for different business sizes and needs.
In summary, here’s how Seamless.ai vs Apollo.io compare:
- With its wide variety of features and affordable pricing (including a free version), Apollo is a good option for small to medium-sized businesses.
- Seamless.AI is suitable for sales professionals, marketers, and recruiters, being a B2B database with real-time data and AI-powered features.
But if you want an easy, plug-and-play prospecting tool that gives you instant access to high-quality B2B data, then you need to try Kaspr!
Enter your work email below to get started 👇
Start using Kaspr to
find contact info today
- No credit card is required to sign up
- Direct dial phone numbers
- Easy to use and ready to go