Overview
Klaviyo and Brevo (formerly Sendinblue) represent different approaches to email marketing. Klaviyo is the go-to platform for e-commerce stores, especially Shopify. Brevo is a budget-friendly all-in-one marketing platform for general use. See our Klaviyo comparison and Brevo comparison for detailed breakdowns.
The choice comes down to: are you running an online store, or do you need general marketing tools?
The Core Difference
Klaviyo is laser-focused on e-commerce. Every feature connects to your store data - what customers browse, buy, and abandon. Product recommendations use AI trained on purchase patterns. Revenue attribution shows exactly which emails drove sales.
Brevo takes the opposite approach. It's a general-purpose platform that bundles email, SMS, WhatsApp, live chat, and CRM. E-commerce integrations exist but aren't the focus.
Pricing: $150 vs $25 at 10K
The pricing difference is dramatic. At 10,000 subscribers, Klaviyo costs $150/month. Brevo costs $25/month.
Why the gap? Klaviyo charges per active profile and positions as premium. Brevo charges per email sent with unlimited contacts. If you have a large list but moderate sending volume, Brevo is 6x cheaper.
For e-commerce stores generating significant revenue, Klaviyo's price is justified by its revenue attribution and optimization features. For everyone else, Brevo's pricing is hard to beat.
E-commerce: Klaviyo Dominates
If you run a Shopify or WooCommerce store, Klaviyo is the better choice. The integrations are deep - product catalogs sync automatically, browse abandonment tracks without extra setup, and AI sequences understand purchase context.
Brevo's e-commerce plugins work but require more manual configuration. You won't get Klaviyo-level product recommendations or predictive customer lifetime value.
All-in-One: Brevo Wins
For non-e-commerce businesses, Brevo offers more in one platform. Email campaigns, SMS, WhatsApp, live chat, landing pages, and CRM - all included. You're not paying for e-commerce features you won't use.
Klaviyo focuses tightly on email and SMS for stores. If you need broader marketing tools, you'll need additional integrations.
For SaaS Companies
Neither Klaviyo nor Brevo is built for SaaS. Klaviyo understands shopping carts, not subscriptions. Brevo is general-purpose without specialized software features.
If you're a SaaS company looking for Stripe integration and subscription-aware automation, consider Sequenzy. It's built specifically for software businesses with transactional email and billing-based triggers.
The 6x Price Question
Klaviyo costs 6x more than Brevo ($150 vs $25/month at 10k contacts). This is the largest price gap in this comparison category. The question is whether Klaviyo's e-commerce specialization generates enough additional revenue to justify spending $1,500/year more. For large e-commerce stores where email drives significant revenue, Klaviyo's product recommendations and revenue attribution often generate returns that dwarf the subscription cost. For smaller stores or those where email is a secondary channel, Brevo's basic e-commerce capabilities may be sufficient at a fraction of the cost.
Multi-Channel vs E-commerce Depth
Brevo offers email, SMS, and WhatsApp marketing from one platform - breadth across channels. Klaviyo offers deep e-commerce automation with product recommendations, predictive analytics, and revenue attribution - depth within the e-commerce vertical. For online stores that communicate primarily through email, Klaviyo's depth drives more revenue. For businesses that need to reach customers across multiple channels, Brevo's breadth provides wider coverage at a lower cost.
The Small Store Decision
For e-commerce stores generating less than $50,000/month in revenue, Klaviyo's premium is hard to justify. The sophisticated automation and predictive analytics are most valuable at scale - when you have enough purchase data for recommendations to be accurate and enough revenue for attribution to be meaningful. Smaller stores can achieve solid results with Brevo's basic e-commerce features and invest the $125/month savings into advertising or inventory instead.
Use-case matchups
| Situation | Best first look | Why |
|---|---|---|
| Ecommerce store wants deep product and revenue automation | Klaviyo | Klaviyo is stronger for store events, attribution, and ecommerce segmentation. |
| Business wants lower-cost email, SMS, WhatsApp, chat, and CRM | Brevo | Brevo is broader and cheaper for general marketing operations. |
| Shopify brand has enough revenue for advanced retention | Klaviyo | Product recommendations and purchase-based flows can justify the premium. |
| Large list sends moderate volume on a budget | Brevo | Brevo's email-volume pricing can be cheaper than profile-based billing. |
| SaaS team needs Stripe and transactional lifecycle email | Sequenzy | Sequenzy is built around software billing and product events instead of ecommerce carts. |
Best Fit by Commerce and Channel Need
Best email marketing tool for Shopify retention revenue
Klaviyo is the stronger fit when the store can use deep product data, purchase history, predictive segments, product recommendations, and SMS to lift repeat purchase revenue. The premium is easiest to justify when ecommerce email is a major profit center.
Best email marketing tool for lower-cost multichannel campaigns
Brevo is the better first look when the team wants email, SMS, WhatsApp, chat, CRM, and transactional sending without Klaviyo's ecommerce-focused price curve. It is especially practical for large lists that send moderately and do not need advanced product-feed personalization.
Best email marketing tool for SaaS billing lifecycle emails
Sequenzy is the better choice when the core events are trial starts, payment failures, upgrades, cancellations, and account activity. Those workflows need subscription context more than Klaviyo's ecommerce catalog depth or Brevo's general multichannel suite.
Pricing reality
Klaviyo's $150/month signal should be measured against ecommerce revenue. It makes sense when the store uses product catalog data, cart/browse flows, predictive analytics, SMS, and revenue attribution.
Brevo's $25/month comparison point is much cheaper, but it is tied to email volume and a broader general-marketing stack. Confirm email limits, SMS/WhatsApp pricing, CRM needs, ecommerce plugin depth, and automation limits.
Sequenzy's $49/month price is relevant when the team needs SaaS lifecycle and transactional email, not Brevo's multi-channel breadth or Klaviyo's ecommerce depth.
Review signals
| Platform | What reviews in this page suggest | What to validate |
|---|---|---|
| Klaviyo | Buyers value ecommerce automation, Shopify/WooCommerce depth, revenue attribution, and product recommendations. | Confirm setup effort, profile billing, SMS costs, and whether advanced ecommerce data will be used. |
| Brevo | Buyers value low pricing, multi-channel marketing, transactional API, CRM, SMS, WhatsApp, and broad usability. | Confirm ecommerce limitations, email-volume math, automation depth, and channel costs. |
Migration checklist
| Workstream | Moving toward Klaviyo | Moving toward Brevo | Moving toward Sequenzy |
|---|---|---|---|
| Contacts | Import profiles, lists, segments, consent, properties, engagement, and suppressions. | Import contacts, lists, attributes, consent, suppressions, and CRM records. | Import subscribers, attributes, tags, suppressions, and Stripe identifiers. |
| Commerce/data | Connect ecommerce platform, product catalog, order history, browse/cart events, and attribution. | Connect ecommerce plugin, CRM data, SMS/WhatsApp channels, forms, and transactional API if needed. | Connect Stripe, product events, transactional routes, Shopify/WooCommerce if needed. |
| Automations | Rebuild cart, browse, post-purchase, winback, back-in-stock, product, and SMS flows. | Rebuild welcome, nurture, campaign, cart, SMS/WhatsApp, CRM, and transactional workflows. | Rebuild onboarding, trial, upgrade, billing, dunning, transactional, and campaign flows. |
| Templates | Recreate product blocks, ecommerce emails, forms, dynamic content, and SMS copy. | Recreate email, SMS, WhatsApp, landing page, form, and transactional templates. | Recreate lifecycle and transactional templates. |
| Reporting | Define revenue attribution, flow revenue, product, segment, and SMS reporting. | Define email-volume, campaign, CRM, channel, automation, and ecommerce reporting. | Define lifecycle, billing, transactional, and campaign reporting. |
Decision checklist
- Is ecommerce revenue lift large enough to justify Klaviyo's premium?
- Does Brevo's lower price still cover the channels and volume you need?
- Are product recommendations and predictive analytics necessary now?
- Would general marketing breadth matter more than ecommerce depth?
- Is the actual requirement SaaS billing lifecycle email instead of ecommerce marketing?
