Brevo vs Klaviyo

Feature and data model comparison

Brevo (formerly Sendinblue) is a multi-channel platform combining email marketing, SMS, WhatsApp, a light CRM, transactional email, and shared inbox tooling. Its automation builder handles welcome series, abandoned-cart flows, and date-based triggers, and it integrates with Shopify, WooCommerce, and Prestashop. The platform is generalist by design and suits businesses that want marketing and transactional messaging from one vendor without a heavy ecommerce data layer.

Klaviyo is purpose-built for ecommerce. It ingests order history, browsing behaviour, and product catalogue data from connected stores and uses that to drive predictive segments, customer lifetime value estimates, and revenue-per-recipient reporting. Its flow library for post-purchase, win-back, and replenishment sequences is more granular than Brevo's, and its benchmarks compare performance against peers in the same vertical.

On segmentation depth, Klaviyo is materially ahead for stores with rich purchase data because segments can combine predictive metrics with event-level behaviour. Brevo's segmentation is competent for list attributes and basic engagement but does not expose the same predictive modelling. For teams whose differentiator is purchase data, this gap is decisive.

Both platforms support SMS as a native channel and offer deliverability tooling. Brevo includes a shared inbox and basic CRM pipeline, which Klaviyo does not, so businesses needing light sales and support functions in one tool may find Brevo more complete outside of pure marketing.

Pricing and total cost

Brevo prices on emails sent per month rather than contacts stored. The Starter tier runs roughly $9 per month for 5,000 emails up to about $69 for 100,000, and the Business tier runs from approximately $18 to $129 across the same volume bands, adding automation, A/B testing, and landing pages. Removing Brevo branding on the lowest tier is a paid add-on. The send-based model is predictable for businesses with large but infrequently emailed lists.

Klaviyo prices on active profiles stored. Following its 2025 shift, billing counts the entire stored database rather than only emailed contacts, so a brand holding 100,000 profiles pays for all of them even if it emails far fewer. Indicative pricing is free up to 250 profiles, around $20 per month at 500, roughly $175 at 5,000, and about $720 at 50,000 for email, with SMS credits billed separately. Pricing verified June 2026; enterprise pricing requires a quote. Buyers with large dormant lists should model Klaviyo cost carefully, as profile-based billing can exceed Brevo materially at scale.

Fit, deployment and ecosystem

Brevo deploys quickly through self-serve onboarding and is well suited to SMBs, agencies, and service businesses that value a single bill for email, SMS, and transactional messaging. Its EU hosting option appeals to organisations with European data-residency preferences.

Klaviyo requires a store-data integration step but rewards it with attribution and segmentation that ecommerce teams use to justify spend. Its ecosystem of ecommerce app integrations and reviews tooling is deeper for retail, while Brevo's broader integration set spans more general business apps. Choosing between them is largely a question of whether ecommerce purchase data is central to the marketing programme.

What buyers say

Buyers frequently note that Brevo offers strong value for mixed email and SMS sending and that its combined marketing and transactional capabilities reduce vendor sprawl for smaller teams. Common criticisms centre on shallower reporting, occasional template-editor friction, and add-on costs that erode the headline price. Klaviyo users consistently praise its ecommerce segmentation, flow library, and revenue attribution, frequently citing measurable lift in campaign revenue. The most common Klaviyo complaint is cost: the shift to profile-based billing drew sustained criticism, and several buyers report bills climbing faster than expected as their stored audience grows. Both platforms are generally regarded as reliable senders with good deliverability when list hygiene is maintained.

Recommendation

Choose Brevo if you are a small or mid-sized business, agency, or service company that needs email, SMS, and transactional messaging from one affordable vendor, if you maintain large lists you email infrequently, or if you value a light built-in CRM and shared inbox alongside marketing. Its send-based pricing rewards disciplined sending and keeps costs predictable.

Choose Klaviyo if you run an ecommerce brand on Shopify, BigCommerce, or a similar platform and want purchase data driving segmentation, predictive analytics, and revenue attribution. The profile-based cost is justified when lifecycle automation measurably increases revenue per recipient. Budget for list hygiene to avoid paying for dormant profiles.

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