Klaviyo vs Sendinblue Classic: Complete Comparison (2026)
Choosing between Klaviyo and Sendinblue Classic is a common decision for email marketing buyers in 2026. Both Klaviyo and Sendinblue Classic are established players, founded in 2012 and 2012 respectively. Klaviyo serves 130K+ orgs users while Sendinblue Classic has 500K+ users globally. Klaviyo differentiates with ecommerce integrations and sms marketing, while Sendinblue Classic leads with transactional emails and marketing campaigns. In this head-to-head comparison, Klaviyo earns a higher hiltonsoftware.co score of 92/100 — but the right choice depends on your specific needs, budget, and team size.
Quick Comparison
Feature-by-Feature Comparison
Pros & Cons at a Glance
After comparing Klaviyo and Sendinblue Classic across features, pricing, and user satisfaction, Klaviyo takes the lead with a score of 92/100 versus Sendinblue Classic's 86/100. Klaviyo's key advantages include "best for e-commerce businesses" and "deep shopify integration". That said, Sendinblue Classic has its own strengths — particularly "excellent transactional email delivery" — making it a viable alternative for specific use cases.
Both Klaviyo and Sendinblue Classic offer free plans, lowering the barrier to entry. Klaviyo's paid plans start at $20/mo while Sendinblue Classic begins at $25/mo. Evaluate which paid features — Predictive analytics, Flows automation (Klaviyo) vs SMS, Chat (Sendinblue Classic) — justify upgrading for your team.
Bottom line: Choose Klaviyo if you need e-commerce brands on shopify wanting data-driven email marketing. Go with Sendinblue Classic if your priority is developers and businesses needing both transactional and marketing email. Both are strong email marketing tools — we recommend trying the free plan of each before committing.
E-commerce brands on Shopify wanting data-driven email marketing.
Developers and businesses needing both transactional and marketing email.