Softwr

Telecommunications · head to head

Aircall vs Klaus

Aircall logo

Aircall

Telecommunications

Cloud phone system for modern business

From
$30/month
Free plan
No
Full reviewWebsite
Klaus logo

Klaus

Customer Support

AI-powered quality management for support teams

From
$50/month
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: Aircall a minimum of 3 users on the published plans, rising to 25 on the Custom tier; Klaus no longer available as standalone product after Zendesk acquisition
  • They diverge on capability: Aircall covers Cloud phone, Klaus covers AI-powered QA.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Aircall and Klaus actually diverge.

Attributes where Aircall and Klaus differ
AttributeAircallKlaus
Starting price$30/month$50/month
PlatformsWeb, Ios, Android, DesktopWeb
CategoryTelecommunicationsCustomer Support
Founded20142017

Identical on both: pricing model (Unknown), 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 Aircall

  • Cloud phone
  • IVR
  • Call routing
  • Power dialer
  • Analytics
  • Call recording
  • Integrations
  • HubSpot

Only in Klaus

  • AI-powered QA
  • Conversation reviews
  • Scorecards
  • Coaching
  • Performance analytics
  • Calibration
  • Freshdesk
  • Front

Both cover

  • Salesforce
  • Zendesk
  • Intercom
  • SOC2
  • GDPR
  • ISO27001
  • Web support

What people use each for

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

Aircall

  • Cloud phone system for sales and support teamsnot Klaus
  • Call routing, IVR and shared numbersnot Klaus
  • Logging calls against CRM records through integrationsnot Klaus
  • Power dialling outbound lists on the Professional tiernot Klaus
  • SMS and MMS alongside voicenot Klaus

Klaus

  • Quality assurancenot Aircall
  • Agent coachingnot Aircall
  • Performance trackingnot Aircall

Where each one falls short

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

Aircall

  • A minimum of 3 users on the published plans, rising to 25 on the Custom tier
  • Essentials is limited to 3 teams; unlimited teams need Professional
  • Salesforce CTI, the power dialer and advanced analytics all require Professional
  • SSO, API support and an SLA are Custom tier only
  • AI voice and messaging agents are separate add-ons billed per minute or per conversation on top of the seat price

Klaus

  • No longer available as standalone product after Zendesk acquisition
  • Requires separate Zendesk subscription (not included in base plan)
  • Cannot be used with non-Zendesk help desk systems

Pricing, plan by plan

Aircall

$30/month

No published plan breakdown. See the Aircall review.

Klaus

$50/month
  • Workforce Engagement Bundle$50/month
    • Includes Zendesk QA (formerly Klaus)
    • Requires base Zendesk Support or Suite plan
    • 100% conversation review with AI

Which should you pick?

Choose Aircall if

  • You need cloud phone.
  • You work on Web, Ios, Android, Desktop.
  • You also want ivr.
Aircall review

Choose Klaus if

  • You need ai-powered qa.
  • You also want conversation reviews.
Klaus review

Questions people ask

Is Aircall or Klaus better?
Neither clearly leads. Aircall starts at $30/month and Klaus at $50/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aircall or Klaus?
Aircall starts at $30/month and Klaus at $50/month.
Does Aircall or Klaus run on more platforms?
Aircall runs on Web, Ios, Android, Desktop. Klaus runs on Web.
What is Aircall best used for?
Aircall is most often used for cloud phone system for sales and support teams, call routing, ivr and shared numbers, logging calls against crm records through integrations, power dialling outbound lists on the professional tier. Of those, cloud phone system for sales and support teams and call routing, ivr and shared numbers are not what Klaus is typically brought in for.
What can Aircall do that Klaus cannot?
Aircall covers Cloud phone, IVR, Call routing, Power dialer. Klaus covers AI-powered QA, Conversation reviews, Scorecards, Coaching. Both handle Salesforce, Zendesk, Intercom, SOC2.

Answered from the vendors’ own pages

Aircall: What is the minimum cost to start with Aircall?

Aircall requires a 3-license minimum on annual billing, making the real entry price $90 per month ($30 per user times 3 users) for the Essentials plan, not the advertised $30 per user.

Source
Klaus: Is Klaus still available as a standalone product?

No. Klaus was acquired by Zendesk in February 2024 and is now integrated into Zendesk as Zendesk QA, requiring a paid Zendesk plan as the base.

Source
Aircall: Does Aircall include AI call features in base plans?

No, AI Voice Agents and AI Assist Pro are separate add-ons billed on top of base plans. The Essentials and Professional plans include call recording and analytics but not AI features.

Source
Klaus: What QA features does Klaus provide?

Klaus automatically reviews 100% of customer interactions using AI, provides immediate performance insights, reduces QA time by 80%, and improves CSAT scores through targeted coaching.

Source
Aircall: How many countries can I create phone numbers in?

Aircall supports creating local phone numbers in 100 or more countries, enabling businesses to appear local to customers regardless of location.

Source
Aircall: What is Aircall's uptime guarantee?

Aircall guarantees 99.95 percent uptime with seven global data centers and system redundancy on every level.

Source
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