Softwr

Customer Support · head to head

Klaus vs Lusha

Klaus logo

Klaus

Customer Support

AI-powered quality management for support teams

From
$50/month
Free plan
No
Full reviewWebsite
Lusha logo

Lusha

CRM

B2B contact and company intelligence

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Lusha has a free tier, so it costs nothing to try first.
  • Each has a real cost: Klaus no longer available as standalone product after Zendesk acquisition; Lusha teams over 5 users must contact sales for configuration; no published per-user limits for standard plans
  • They diverge on capability: Klaus covers AI-powered QA, Lusha covers Contact database.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Klaus and Lusha actually diverge.

Attributes where Klaus and Lusha differ
AttributeKlausLusha
Starting price$50/monthFree
Pricing modelUnknownfreemium
Free tierNoYes
CategoryCustomer SupportCRM
Founded20172016

Identical on both: platforms (Web), 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 Klaus

  • AI-powered QA
  • Conversation reviews
  • Scorecards
  • Coaching
  • Performance analytics
  • Calibration
  • Zendesk
  • Intercom

Only in Lusha

  • Contact database
  • Email search
  • Company intelligence
  • Email verification
  • Chrome extension
  • Integrations
  • HubSpot
  • LinkedIn

Both cover

  • Salesforce
  • GDPR
  • Web support

What people use each for

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

Klaus

  • Quality assurancenot Lusha
  • Agent coachingnot Lusha
  • Performance trackingnot Lusha

Lusha

  • Lead generationnot Klaus
  • Contact researchnot Klaus
  • Email verificationnot Klaus

Where each one falls short

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

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

Lusha

  • Teams over 5 users must contact sales for configuration; no published per-user limits for standard plans
  • Unused credits on monthly plans roll over but cap at twice the monthly limit, creating potential waste
  • Annual plans do not roll over unused credits; they reset at cycle end

Pricing, plan by plan

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

Lusha

Free
  • FreeFree
    • 40 credits per month
    • Basic prospecting features
    • Browser extension
  • Starter$49.9/month
    • 400 credits per month
    • All Free plan features
  • Professional$69.9/month
    • 600 credits per month
    • All Starter features
  • Premium$399.9/month
    • 3,400 credits per month
    • All Professional features

Which should you pick?

Choose Klaus if

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

Choose Lusha if

  • You need contact database.
  • You want to start without paying.
  • You also want email search.
Lusha review

Questions people ask

Is Klaus or Lusha better?
Neither clearly leads. Klaus starts at $50/month and Lusha at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Klaus or Lusha?
Lusha has a free tier; the other does not. Paid plans start at $50/month for Klaus and Free for Lusha.
Does Klaus or Lusha run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Lusha for free?
Yes. Lusha has a free tier, so you can try it without paying. Klaus starts at $50/month.
What is Klaus best used for?
Klaus is most often used for quality assurance, agent coaching, performance tracking. Of those, quality assurance and agent coaching are not what Lusha is typically brought in for.
What can Klaus do that Lusha cannot?
Klaus covers AI-powered QA, Conversation reviews, Scorecards, Coaching. Lusha covers Contact database, Email search, Company intelligence, Email verification. Both handle Salesforce, GDPR, Web support.

Answered from the vendors’ own pages

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
Lusha: What does Lusha's Free plan include?

Lusha's Free plan provides 40 credits per month at no cost. It includes basic prospecting features, browser extension access, and CRM integrations. Credits are used for email reveals (1 credit per contact) and phone numbers (10 credits per contact).

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
Lusha: How do Lusha credits work and what is the credit rollover policy?

Lusha uses a credit system where email reveals cost 1 credit and phone reveals cost 10 credits per contact. On monthly plans, unused credits roll over and accumulate up to twice your monthly credit limit. Annual plans reset unused credits at the cycle's end without rollover.

Source
Lusha: What is the annual pricing for Lusha plans?

Lusha offers annual pricing at a discount: Starter is $449.10/year (4,800 credits annually), Professional is $587.16/year (7,200 credits), and Premium is $3,119.21/year (40,800 credits). Annual plans are cheaper per credit than monthly but do not roll over unused credits.

Source
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