Klar vs RetentionX

Klar9.0Visit RetentionX8.4Visit

Higher score Klar #2 in Ecommerce Analytics Software 9.0/10 14-day trial Free trial✓ 4 of 4 features Visit Klar

vs

RetentionX #6 in Ecommerce Analytics Software 8.4/10 30-day trial Free trial✓ 4 of 4 features Visit RetentionX

• Klar fits best

  Ecommerce brands that want profitability, retention and attribution in one connected view, without a long-term contract

• RetentionX fits best

  Customer-centric brands needing profitability analytics

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Side by side

Feature	Klar 9.0/10 Visit ↗	RetentionX 8.4/10 Visit ↗
At a glance
Editor score	9.0	8.4
Ranking	#2 in Ecommerce Analytics Software	#6 in Ecommerce Analytics Software
Best for	Ecommerce brands that want profitability, retention and attribution in one connected view, without a long-term contract	Customer-centric brands needing profitability analytics
Pricing model	Paid	Paid
Starting price	€200/mo	$49/mo
Free plan	—	—
Free trial	14 days	30 days
Free trial length	14 days	30 days
Deployment	Cloud, Browser extension	Cloud
Platforms	Web, Chrome extension	Web
Support	Live chat, Email, Docs	Email, Live chat, Docs
Compliance	GDPR, ISO 27001	GDPR, 2FA
Integrations	20 integrations	50+ integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Klar 4/4 · RetentionX 4/4
Marketing attribution	✓	✓
Profitability reporting	✓	✓
Customer cohorts	✓	✓
Product margin tracking	✓	✓
Specs
Storefront platforms	Shopify, Shopware, WooCommerce, Magento, Centra, Amazon Seller	Shopify, BigCommerce; other ecommerce platforms via scheduled data import
Data retention	Not checked yet	Not checked yet
Data refresh frequency	Real_time	Daily
Our review
Pros	Full profitability reporting with P&L, detailed COGS and fulfillment costs, down to the product level Retention analytics: cohort reports, customer lifetime value, and industry benchmarks First-party tracking pixel with a full multi-touch attribution and measurement suite on Core + Attribution	Combines cohorts, LTV, segmentation, attribution, and profitability reporting Includes identity resolution, churn prediction, and workflow activation Connects with ecommerce, marketing, support, and subscription tools
Cons	Core alone has no attribution suite; the pixel and measurement suite need the Core + Attribution plan at €400/month No stated data-history limit on its own pricing or feature pages No free plan; a 14-day trial is the only no-cost option	Direct storefront connections focus on Shopify and BigCommerce Data refresh is daily rather than continuous Advanced capabilities require higher-priced plans
Our verdict	Klar is an ecommerce profitability, retention and attribution platform built around a single connected view of what drives profit. The Core plan, from €200 a month based on the brand's trailing 12 months of net revenue, covers full… Read the review →	RetentionX is a web-based ecommerce analytics and integrated growth platform for ecommerce teams, marketers, founders, and consumer brands. It brings customer and product analytics, cohort and retention analysis, lifetime-value analysis,… Read the review →

Strengths and trade-offs

• Klar — where it wins

  • Full profitability reporting with P&L, detailed COGS and fulfillment costs, down to the product level
  • Retention analytics: cohort reports, customer lifetime value, and industry benchmarks
  • First-party tracking pixel with a full multi-touch attribution and measurement suite on Core + Attribution
  • 153 data sources connected in a single published customer case, across 14 markets and 11 currencies

  Where it doesn't

  • Core alone has no attribution suite; the pixel and measurement suite need the Core + Attribution plan at €400/month
  • No stated data-history limit on its own pricing or feature pages
  • No free plan; a 14-day trial is the only no-cost option
  • No mobile app of its own: web and a Chrome extension only

• RetentionX — where it wins

  • Combines cohorts, LTV, segmentation, attribution, and profitability reporting
  • Includes identity resolution, churn prediction, and workflow activation
  • Connects with ecommerce, marketing, support, and subscription tools

  Where it doesn't

  • Direct storefront connections focus on Shopify and BigCommerce
  • Data refresh is daily rather than continuous
  • Advanced capabilities require higher-priced plans

• Klar9.0/10 · 14-day trial

  Ecommerce profitability, retention and attribution reporting from €200 a month.

  Visit KlarFull verdict →
• RetentionX8.4/10 · 30-day trial

  A broad ecommerce analytics suite for brands focused on retention, LTV, and profitability.

  Visit RetentionXFull verdict →