AI solution · Klaviyo · Marketing

Klaviyo

Email and SMS marketing platform with AI solutions built for online retailers.

Independent overview by new Mantra · updated September 28, 2026

Category: Marketing
Pricing: Free (up to 250 profiles, 500 emails/mo); paid plans scale by contacts and channel usage; Enterprise pricing available
Implementation: 1-2 weeks
Adoption risk: Medium
Integrates with: Shopify, ChatGPT, Claude, Klaviyo MCP

If you run an online store, especially on Shopify, Klaviyo ties every email and SMS to real purchase and browsing data. The free plan — up to 250 profiles and 500 emails a month — is enough to connect your store and build a first flow.

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What Klaviyo does

Klaviyo is a marketing and CRM platform designed for consumer brands selling online. It brings together email, SMS, mobile push, WhatsApp, and other channels into one place, connecting to customer data so messages can respond to real purchase and browsing behaviour rather than static lists.

The platform includes a set of AI features — grouped under the name Klaviyo AI — that can help draft copy, build campaign flows from a prompt, and surface which segments or automations are most likely to drive revenue. A separate AI agent handles customer service queries, and Klaviyo says it resolves 65% of those questions without human involvement.

On the data side, Klaviyo maintains unified customer profiles that combine behavioural, transactional, and engagement data in real time. It connects to over 350 third-party apps, with native integrations for Shopify, ChatGPT, Claude, and its own MCP server for teams building agentic workflows.

Key capabilities

Multichannel campaign management

Run email, SMS, mobile push, WhatsApp, and social marketing from a single platform, with all channels drawing on the same customer profile data.

AI-assisted campaign creation

The Composer feature lets you describe a campaign goal in a prompt; it audits existing flows and builds new ones, including copy and segmentation, on your behalf.

Predictive analytics and segmentation

Klaviyo uses customer data to power predictive analytics and dynamic segmentation, so you can target based on likely future behaviour rather than past actions alone.

Automated customer service agent

Customer Agent is an AI-powered service solution trained on your brand data from day one; it can handle support questions and identify selling or upsell opportunities in the same conversation.

Real-time customer data platform

The Klaviyo Data Platform unifies behavioural, transactional, and engagement data in real time, making it available immediately across every marketing and service touchpoint.

Broad integration ecosystem

Over 350 pre-built integrations cover ecommerce, point of sale, loyalty, shipping, advertising, and subscriptions, including a native Shopify connector and AI solution connections via ChatGPT and Claude.

Best for

Online retailers — particularly those on Shopify — who want email and SMS marketing managed in one platform rather than stitched across separate solutions.
Small businesses that want to start free and scale into paid features as their contact list and channel usage grows.
Teams that want AI to help write and structure campaigns without needing dedicated copywriters or marketing operations staff.
Brands that also manage customer support and want service and marketing data to share a single customer record.
Businesses already using AI solutions like ChatGPT or Claude who want their marketing workflows connected to those environments.

Worth knowing

Paid plan costs are contact- and channel-based, meaning costs rise as your list and SMS usage grow — model this carefully before committing, especially if you have a large but low-engagement list.
Implementation is estimated at one to two weeks, which is relatively light, but realising the full value of predictive and AI features requires clean, connected customer and order data from the start.
The platform is built primarily for B2C retail and ecommerce; if your business is B2B, service-based, or outside the retail sector, the feature set may not be the right fit.
The AI features — copy generation, flow building, customer service automation — are most useful if you have enough customer data and transaction history to train meaningful personalisation; early-stage stores with sparse data will see limited benefit.
Enterprise pricing is available but not published; larger organisations should factor in time to negotiate terms and evaluate whether professional services support is needed for implementation.

How Klaviyo compares

Email platforms overlap on flows and segmentation. For an online store, the differences are how deep the purchase data goes, which channels are included and how the price climbs with your list. Klaviyo is the data-deep end, built for B2C ecommerce.

vs Omnisend

Omnisend is also built for ecommerce — email, SMS and push with native Shopify, WooCommerce, BigCommerce and Wix connections — with a free plan and Standard from $16 a month. Klaviyo adds predictive analytics, WhatsApp and an AI customer-service agent. For a store that needs the core flows at a lower price, Omnisend may be enough; for predictive segmentation at scale, Klaviyo.

vs MailerLite

MailerLite is a general email solution — free up to 250 subscribers, Comfort around $10.80 a month — with Shopify and WooCommerce connections and simpler automation. It suits a small store sending newsletters and basic sequences. Klaviyo is heavier, built on purchase and browsing behaviour with SMS and predictive segmentation, and pays off once there is enough customer data.

vs Brevo

Brevo covers email, SMS, a CRM and transactional messages, from $9 a month, priced by send volume rather than contacts. That suits a large list emailed infrequently, or a business outside retail. Klaviyo's price rises with contacts, and its value rises with the transaction history you feed it.

vs GetResponse

GetResponse is a broader email platform — landing pages, webinars and course solutions plus cart recovery — from $19 a month. It suits businesses that sell through content as well as products. Klaviyo is narrower and deeper for online retail, tying every message to real purchase and browsing behaviour.

Ready to see Klaviyo in action?

Build one revenue flow on the free plan, such as abandoned cart or post-purchase. Paid plans scale with contacts and channel usage, so model your list size and SMS volume before upgrading — particularly if much of your list rarely engages.