Klaviyo vs Constant Contact

Klaviyo9.3Visit Constant Contact8.5Visit

Higher score Klaviyo #1 in Email Marketing Software 9.3/10 Free plan Free plan✓ 4 of 4 features Visit Klaviyo

vs

Constant Contact #8 in Email Marketing Software 8.5/10 30-day trial Free trial✓ 4 of 4 features Try Constant Contact

• Klaviyo fits best

  Advanced ecommerce personalization

• Constant Contact fits best

  Small businesses wanting broad integrations

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Side by side

Feature	Klaviyo 9.3/10 Visit ↗	Constant Contact 8.5/10 Visit ↗
At a glance
Editor score	9.3	8.5
Ranking	#1 in Email Marketing Software	#8 in Email Marketing Software
Best for	Advanced ecommerce personalization	Small businesses wanting broad integrations
Pricing model	Free plan + paid	Paid
Starting price	—	—
Free plan	✓ (best)	—
Free trial	—	30 days
Deployment	Cloud	Cloud, Mobile
Platforms	Web	Web, Android
Support	Email, Live chat, Community, Docs · 24/7	Phone, Live chat, Community, Docs
Compliance	ISO 27001, PCI DSS	2FA
Integrations	350+ integrations	300+ integrations
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market
Features Klaviyo 4/4 · Constant Contact 4/4
Email automation	✓	✓
Audience segmentation	✓	✓
Landing pages	✓	✓
A/B testing	✓	✓
Specs
Subscriber limit	Not checked yet	500 contacts
Monthly send limit	15000 emails/mo (best)	5000 emails/mo
Native integrations	350 integrations (best)	300 integrations
Our review
Pros	Behavior-triggered flows and dynamic audience segmentation Unified customer profiles support personalized targeting Email, SMS, and mobile push campaigns in one platform	300+ integrations across commerce, CRM, social, events, and payments Combines email, SMS, landing pages, events, and social campaigns Includes segmentation, automation, reporting, and AI-assisted content tools
Cons	Paid marketing starts at $45 per month Free plan is limited to 250 active profiles Advanced capabilities may exceed simple email-only needs	No free plan is available Lite limits users to one automation template and one custom segment Advanced features require Standard or Premium pricing
Our verdict	Klaviyo is a B2C CRM and email marketing platform for consumer brands, with a particular fit for ecommerce teams focused on personalized customer journeys. It combines email campaigns, automated flows, audience segmentation, unified… Read the review →	Constant Contact is a web-based digital marketing platform for small businesses, nonprofits, franchises, and agencies. It brings email creation, contact management, segmentation, automated workflows, landing pages, social media, SMS,… Read the review →

Strengths and trade-offs

• Klaviyo — where it wins

  • Behavior-triggered flows and dynamic audience segmentation
  • Unified customer profiles support personalized targeting
  • Email, SMS, and mobile push campaigns in one platform

  Where it doesn't

  • Paid marketing starts at $45 per month
  • Free plan is limited to 250 active profiles
  • Advanced capabilities may exceed simple email-only needs

• Constant Contact — where it wins

  • 300+ integrations across commerce, CRM, social, events, and payments
  • Combines email, SMS, landing pages, events, and social campaigns
  • Includes segmentation, automation, reporting, and AI-assisted content tools

  Where it doesn't

  • No free plan is available
  • Lite limits users to one automation template and one custom segment
  • Advanced features require Standard or Premium pricing

• Klaviyo9.3/10 · Free plan

  A strong fit for ecommerce teams that need behavioral personalization across channels.

  Visit KlaviyoFull verdict →
• Constant Contact8.5/10 · 30-day trial

  A broad email marketing suite with 300+ integrations, but no free plan.

  Try Constant ContactFull verdict →