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Head-to-head · Customer Retention Software

Klaviyo vs ChurnZero

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Klaviyo #2 in Customer Retention Software 9.0/10 Free plan Free plan✓ 0 of 2 features Visit Klaviyo
ChurnZero #3 in Customer Retention Software 8.8/10 Pricing on request ✓ 0 of 2 features Visit ChurnZero

Klaviyo leads on 0 checks, ChurnZero on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreKlaviyo · 9.0/10
  • Free planonly Klaviyo

Klaviyo scores higher on our rubric for customer retention software: 9.0 against 8.8 out of 10; our editors rank them #2 and #3.

Klaviyo is the better fit for ecommerce teams seeking accessible retention marketing. ChurnZero is the better fit for mid-market and enterprise teams managing churn and renewals.

  • Klaviyo fits best

    Ecommerce teams seeking accessible retention marketing

  • ChurnZero fits best

    Mid-market and enterprise teams managing churn and renewals

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Klaviyo 9.0/10 Visit ↗ ChurnZero 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #2 in Customer Retention Software #3 in Customer Retention Software
Best for Ecommerce teams seeking accessible retention marketing Mid-market and enterprise teams managing churn and renewals
Pricing model Free plan + paid Paid
Starting price — Pricing on request
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Compliance ISO 27001, PCI DSS SOC 2, ISO 27001, GDPR, HIPAA
Integrations 350+ integrations 70+ integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Klaviyo 0/2 · ChurnZero 0/2
Churn prediction Not checked yet Not checked yet
Loyalty / rewards Not checked yet Not checked yet
Specs
Journey channels Not checked yet Not checked yet
Automation workflows Not checked yet Not checked yet
Contact limit Not checked yet Not checked yet
Retention analytics Not checked yet Not checked yet
Our review
Pros
  • Automates email, SMS, and push flows using behavioral data
  • Segments audiences in real time and supports campaign A/B testing
  • Connects with 350+ integrations, including Shopify and CRMs
  • Combines health scoring, churn risk signals, and renewal forecasting
  • Automates onboarding and engagement with playbooks and customer journeys
  • Offers customer collaboration through Success Centers and Success Plans
Cons
  • Free plan is limited to 250 active profiles and 500 monthly email sends
  • Email support on the free plan lasts only the first 60 days
  • The Email plan's published highlights do not specify its price
  • Pricing requires contacting sales
  • Its breadth may exceed the needs of teams seeking a narrow retention tool
  • Fit depends on connecting customer, product, support, revenue, and sentiment data
Our verdict

Klaviyo combines email marketing, SMS, automation, customer data, analytics, segmentation, and customer service in a B2C CRM for consumer brands. Ecommerce teams can use it to build campaigns and automated flows around customer behavior,…

Read the review →

ChurnZero brings customer health monitoring, lifecycle workflows, and renewal management into a customer success platform for subscription businesses. It is aimed at customer success teams and organizations managing retention, adoption,…

Read the review →
  1. KlaviyoCustomer Retention Software 9.0Free plan
  2. ChurnZeroCustomer Retention Software 8.8Pricing on request

Strengths and trade-offs

  • Klaviyo — where it wins

    • Automates email, SMS, and push flows using behavioral data
    • Segments audiences in real time and supports campaign A/B testing
    • Connects with 350+ integrations, including Shopify and CRMs

    Where it doesn't

    • Free plan is limited to 250 active profiles and 500 monthly email sends
    • Email support on the free plan lasts only the first 60 days
    • The Email plan's published highlights do not specify its price

  • ChurnZero — where it wins

    • Combines health scoring, churn risk signals, and renewal forecasting
    • Automates onboarding and engagement with playbooks and customer journeys
    • Offers customer collaboration through Success Centers and Success Plans

    Where it doesn't

    • Pricing requires contacting sales
    • Its breadth may exceed the needs of teams seeking a narrow retention tool
    • Fit depends on connecting customer, product, support, revenue, and sentiment data
  • Klaviyo9.0/10 · Free plan

    A multichannel retention platform for ecommerce teams, with a free entry tier and broad integrations.

    Visit KlaviyoFull verdict →
  • ChurnZero8.8/10 · Pricing on request

    A customer success platform for tracking account health, automating journeys, and managing renewals.

    Visit ChurnZeroFull verdict →

More comparisons

All customer retention software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update