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Telecommunications · head to head

Five9 vs Zendesk

Five9 logo

Five9

Telecommunications

Intelligent cloud contact center

From
$149/month
Rated
-
Full reviewWebsite
Zendesk logo

Zendesk

Customer Support

Champions of customer service

From
$19/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Five9 a 50 seat minimum applies to the published rates, so the entry cost on the $119 Digital plan is $5,950 a month; 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: Five9 covers Intelligent routing, Zendesk covers Ticket management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Five9 and Zendesk actually diverge.

Attributes where Five9 and Zendesk differ
AttributeFive9Zendesk
Starting price$149/month$19/month
PlatformsWeb, DesktopWeb
CategoryTelecommunicationsCustomer Support
Founded20012007

Identical on both: pricing model (subscription), free tier (No), 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 Five9

  • Intelligent routing
  • IVR
  • ACD
  • Dialer
  • WFM
  • Quality management
  • Analytics
  • ServiceNow

Only in Zendesk

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

Both cover

  • Salesforce
  • SOC2
  • HIPAA

What people use each for

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

Five9

  • Cloud contact centre across voice, chat, email and social messagingnot Zendesk
  • Routing and managing high volume customer interactionsnot Zendesk

Zendesk

  • Help desk and ticketing system managementnot Five9
  • Omnichannel customer supportnot Five9
  • Knowledge base and self-service portalsnot Five9
  • AI-assisted customer servicenot Five9

Where each one falls short

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

Five9

  • A 50 seat minimum applies to the published rates, so the entry cost on the $119 Digital plan is $5,950 a month
  • Prices are per concurrent user rather than per named agent, which changes what a seat means when shifts overlap
  • Voice is excluded from the Digital plan and requires a quote
  • Usage based charges apply on top of the per seat rate
  • Three of the five tiers publish no price at all

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

Five9

$149/month
  • Core$149/month
    • Inbound/outbound
    • IVR
    • Basic CTI
  • Premium$169/month
    • Core + Chat/email
    • Quality management
  • Optimum$199/month
    • Premium + WFM
    • Proactive chat
  • Ultimate$229/month
    • Full suite
    • Advanced analytics

Zendesk

$19/month

No published plan breakdown. See the Zendesk review.

Which should you pick?

Choose Five9 if

  • You need intelligent routing.
  • You work on Web, Desktop.
  • You also want ivr.
Five9 review

Choose Zendesk if

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

Questions people ask

Is Five9 or Zendesk better?
Neither clearly leads. Five9 starts at $149/month and Zendesk at $19/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Five9 or Zendesk?
Five9 starts at $149/month and Zendesk at $19/month.
Does Five9 or Zendesk run on more platforms?
Five9 runs on Web, Desktop. Zendesk runs on Web.
What is Five9 best used for?
Five9 is most often used for cloud contact centre across voice, chat, email and social messaging, routing and managing high volume customer interactions. Of those, cloud contact centre across voice, chat, email and social messaging and routing and managing high volume customer interactions are not what Zendesk is typically brought in for.
What can Five9 do that Zendesk cannot?
Five9 covers Intelligent routing, IVR, ACD, Dialer. Zendesk covers Ticket management, Omnichannel support, Knowledge base, Live chat. Both handle Salesforce, SOC2, HIPAA.

Answered from the vendors’ own pages

Five9: What is the minimum team size required to use Five9?

Five9 requires a minimum commitment of 50 seats for any subscription plan.

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
Five9: How is Five9 pricing calculated, per user, flat rate, or usage-based?

Five9 offers flexible pricing models: per concurrent user, per named agent, or pay-per-use. The pricing structure varies depending on the chosen bundle.

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
Five9: What does the entry-level Digital bundle include, and what does it cost?

The Digital bundle costs $119 per month per seat and supports digital channels only. Higher tiers (Core at $159, Plus, Pro, and Enterprise) are available, with Plus/Pro/Enterprise requiring contact with sales for pricing.

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
Five9: Are there additional charges beyond the base subscription?

Yes. All bundles include 3000 AI minutes per seat, but additional AI usage incurs charges. SMS messaging also has usage-based charges applied separately.

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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