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CRM · head to head

Seamless.AI vs Zendesk

Seamless.AI logo

Seamless.AI

CRM

Sales lead search engine for finding contact and company data

From
Free
Free plan
Yes
Full reviewWebsite
Zendesk logo

Zendesk

Customer Support

Champions of customer service

From
$19/month
Free plan
No
Full reviewWebsite

The short version

  • Only Seamless.AI has a free tier, so it costs nothing to try first.
  • Each has a real cost: Seamless.AI pro and Enterprise pricing is not published and requires contacting sales.; Zendesk aI agents operate on per-resolution billing; customers pay only when an AI agent successfully resolves a ticket without escalation
  • They diverge on capability: Seamless.AI covers Contact search, Zendesk covers Ticket management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Seamless.AI and Zendesk actually diverge.

Attributes where Seamless.AI and Zendesk differ
AttributeSeamless.AIZendesk
Starting priceFree$19/month
Pricing modelfreemiumsubscription
Free tierYesNo
Platformsweb, apiWeb
CategoryCRMCustomer Support
FoundedUnknown2007

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Seamless.AI

  • Contact search
  • Real-time search engine
  • Job change alerts
  • Buyer intent data
  • CRM and API integrations
  • Enterprise security

Only in Zendesk

  • Ticket management
  • Omnichannel support
  • Knowledge base
  • Live chat
  • Call center
  • Analytics & reporting
  • Automation
  • Customer satisfaction

What people use each for

The jobs each tool is most often brought in to do.

Seamless.AI

  • B2B sales teams building prospecting listsnot Zendesk
  • Finding verified emails and phone numbers for outreachnot Zendesk
  • Tracking job changes among target contactsnot Zendesk
  • Identifying accounts showing buyer intentnot Zendesk

Zendesk

  • Help desk and ticketing system managementnot Seamless.AI
  • Omnichannel customer supportnot Seamless.AI
  • Knowledge base and self-service portalsnot Seamless.AI
  • AI-assisted customer servicenot Seamless.AI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Seamless.AI

  • Pro and Enterprise pricing is not published and requires contacting sales.
  • Free plan is limited to just 50 credits and a single user.
  • Data accuracy for contact details can vary and requires verification before outreach.
  • Credit-based usage model means heavy prospecting can exhaust allotments quickly.

Zendesk

  • AI agents operate on per-resolution billing; customers pay only when an AI agent successfully resolves a ticket without escalation
  • Copilot and Contact Center features available as separate add-ons at £50+/agent/month
  • Advanced routing, workforce engagement, and approval workflows limited to Enterprise tier
  • Highest tier requires sales consultation and custom pricing

Pricing, plan by plan

Seamless.AI

Free
  • FreeFree
    • 1 user
    • 50 credits
    • Email and cell phone search
  • Pro$undefined/mo
    • Per-user pricing
    • Unlimited exports
    • Annual credit packages
  • Enterprise$undefined/mo
    • Unlimited users
    • Custom credit allotments
    • Dedicated success manager

Zendesk

$19/month

No published plan breakdown. See the Zendesk review.

Which should you pick?

Choose Seamless.AI if

  • You need contact search.
  • You want to start without paying.
  • You work on web, api.
  • You also want real-time search engine.
Seamless.AI review

Choose Zendesk if

  • You need ticket management.
  • You also want omnichannel support.
Zendesk review

Questions people ask

Is Seamless.AI or Zendesk better?
Neither clearly leads. Seamless.AI starts at Free and Zendesk at $19/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Seamless.AI or Zendesk?
Seamless.AI has a free tier; the other does not. Paid plans start at Free for Seamless.AI and $19/month for Zendesk.
Does Seamless.AI or Zendesk run on more platforms?
Seamless.AI runs on web, api. Zendesk runs on Web.
Can I use Seamless.AI for free?
Yes. Seamless.AI has a free tier, so you can try it without paying. Zendesk starts at $19/month.
What is Seamless.AI best used for?
Seamless.AI is most often used for b2b sales teams building prospecting lists, finding verified emails and phone numbers for outreach, tracking job changes among target contacts, identifying accounts showing buyer intent. Of those, b2b sales teams building prospecting lists and finding verified emails and phone numbers for outreach are not what Zendesk is typically brought in for.
What can Seamless.AI do that Zendesk cannot?
Seamless.AI covers Contact search, Real-time search engine, Job change alerts, Buyer intent data. Zendesk covers Ticket management, Omnichannel support, Knowledge base, Live chat.

Answered from the vendors’ own pages

Seamless.AI: Is there a free plan, and what are its limits?

Yes, the Free plan includes 1 user and 50 credits, with access to email and cell phone search, real-time search, and API access.

Source
Zendesk: What is included in the free trial?

You'll have access to all features on the Zendesk Customer Service Suite Professional plan for 14 days, with Copilot included by default.

Source
Seamless.AI: How is usage metered on Seamless.AI?

Seamless.AI uses a credit system where credits are consumed to research contact details; paid Pro plans start with larger annual credit packages than the Free plan.

Source
Zendesk: How is Zendesk pricing calculated?

Base subscription pricing is determined by your selected plan tier and the number of agent seats needed. Additional costs include usage-based features like App Builder and Voice, plus optional add-ons.

Source
Seamless.AI: Does Seamless.AI have an API?

Yes, API access is included even on the Free plan, alongside export and integration capabilities on paid plans.

Source
Zendesk: What are the contract terms?

Zendesk subscriptions are month to month, annual, or multi-year. Annual billing typically costs less than monthly payments.

Source
Zendesk: Can I upgrade or downgrade my plan?

Yes, changes may apply immediately or at renewal depending on your subscription terms.

Source
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