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Klaviyo vs SendX

Both are in Email marketing. Here is how their plans, prices and features compare, taken from each vendor's own site.

The main differences

  • Klaviyo's cheapest paid plan is $20/mo, against $79.99/mo for SendX.
  • Klaviyo has a free plan; SendX does not.
  • Fees: Klaviyo states none; SendX Shown at 15K contacts, monthly billing; starts at $9.99 a month; annual saves 25%.
 KlaviyoSendX
Starting priceFree plan · from $20/mofrom $79.99/mo
Free planYesNo
Free trialNot stated by the vendorYes
PlansFree ($0); Email ($20/mo); Marketing ($90/mo)One plan ($79.99/mo)
FeesNot statedShown at 15K contacts, monthly billing; starts at $9.99 a month; annual saves 25%
Best forEcommerceNot stated
Key featuresEmail campaigns, signup forms and segmentation; 350+ integrations (Email and up); A/B testing (Email and up); Generative AI for subject lines, content, images and segmentsNewsletter, drip, auto-trigger and RSS-to-email campaigns; A/B split test campaigns; Unlimited email sends; Smart Send AI-optimized send timing and timezone-aware sending
Checked on2026-10-012026-10-04

Prices change; confirm on the vendor's site before you buy. Full details and sources are on each tool's page.

Klaviyo

  • Free plan with 500 emails a month
  • 350+ integrations
  • A broad ecommerce toolset on the Marketing plan

Trade-offs

  • Priced by active profiles, so cost rises as the list grows
  • Email support on Free lasts only 60 days
  • A/B testing is not on the Free plan

Visit KlaviyoFull listing

SendX

  • One plan with every feature, priced only by contacts
  • Free to try with no credit card
  • 60-day money-back guarantee

Trade-offs

  • Price rises with contacts: $79.99 a month at 15K contacts on monthly billing
  • The money-back guarantee applies to accounts with fewer than 100K contacts and 100K emails sent
  • SendX Elevated Support is a paid add-on

Visit SendXFull listing