Klaviyo is the better pick when you run an online store and want email and SMS driven by purchase data, while ActiveCampaign is the better pick when your business sells services, courses, or B2B offers and needs deep automation plus a built-in CRM. That is the short verdict from documented features and published pricing. Klaviyo is built around ecommerce events such as viewed product, abandoned cart, and placed order, and ActiveCampaign is built around contact records, deals, and branching automation maps.
Both tools are priced by audience size, which is where small businesses get surprised. Klaviyo bills on active profiles, so contacts you rarely email still count. ActiveCampaign bills on contacts and gates its best features by plan tier. Published 2026 figures vary by source, so verify current pricing on each vendor's page before you commit.
This comparison is for US small businesses choosing one platform. If you are still building a shortlist across the whole category, start with our best email marketing software roundup, then come back here to settle the two-way decision.
How We Compared Klaviyo and ActiveCampaign
We compared both tools using each vendor's public pricing pages, documented feature lists, integration directories, and patterns that appear across large volumes of verified user reviews. We did not run campaigns or build live flows in either account. We applied the same yardstick to both: cost at realistic list sizes, depth of automation, ecommerce data handling, CRM and sales features, deliverability tooling, and how hard it is to leave.
Where Klaviyo wins: store data driving every message
Klaviyo's main advantage is that it treats commerce activity as the core data model. Native integrations with Shopify, WooCommerce, BigCommerce, and Magento sync products, orders, and browsing behavior, so a flow can branch on what someone bought, how much they spent, or which collection they viewed. Reviewers consistently describe the pre-built flow library (welcome series, abandoned cart, browse abandonment, post-purchase, win-back) as the fastest route to revenue-producing automation for a store.
Klaviyo also bundles SMS into the same platform and the same profile, which is useful when the same customer should get an email first and a text only if they ignore it. Predictive fields such as expected next order date and predicted lifetime value are documented features that help with segmentation without a data analyst. For a deeper look at the product alone, see our Klaviyo review.
The weak points are documented too. Klaviyo is not a CRM, so there is no native deal pipeline or sales task management. Pricing climbs quickly as your profile count grows, and users often report that cleaning out unengaged profiles is a recurring chore to keep the bill in check. Teams that sell services rather than products also find that much of the product's value sits unused.
Where ActiveCampaign wins: automation depth and a built-in CRM
ActiveCampaign's strength is its automation builder. It supports multi-branch logic, wait conditions, goals, lead scoring, site tracking, and tagging, and it connects those to a native CRM with deals, pipelines, and sales automations on higher tiers. Reviewers frequently say it handles long nurture sequences for leads, trial users, and course buyers better than store-focused tools. Our ActiveCampaign review covers the full feature set.
It also has ecommerce capability through integrations with Shopify, WooCommerce, and others, plus abandoned-cart and product-based automations. The documented limitation is that these are add-ons to a contact-centered system, so product catalog depth and revenue reporting are generally described as less detailed than Klaviyo's. Another common complaint is that advanced features such as scoring, split automations, and the CRM sit on higher plans, so the real price is often above the entry tier.
If your alternative is a simpler tool, our Mailchimp vs ActiveCampaign comparison shows where ActiveCampaign sits against the entry-level option.
Pricing at realistic list sizes
Third-party 2026 sources put Klaviyo's paid email plan at roughly $20 a month for the 251 to 500 profile tier, with a free plan for up to 250 profiles and prices rising to roughly $150 a month near 10,000 profiles. ActiveCampaign has no free plan, only a trial, and published figures for the Plus tier run from about $49 to $59 a month at 1,000 contacts, rising to around $99 at 5,000 and $159 at 10,000. Sources disagree, and both vendors price dynamically by list size, so treat every number as a starting point and verify current pricing.
The pattern is still useful. At very small list sizes Klaviyo tends to be cheaper to start. As lists grow, the gap narrows, and what matters more is which features you need on which tier. Klaviyo's SMS is billed separately by credits or message volume, and ActiveCampaign's CRM and advanced automation require stepping up from the entry plan.
Side-by-side comparison
| Factor | Klaviyo | ActiveCampaign |
|---|---|---|
| Best for | Online stores | Services, B2B, courses |
| Core data model | Customer and order events | Contacts, deals, tags |
| Native CRM | No | Yes, on supported plans |
| SMS | Built in, billed separately | Available on higher plans, verify |
| Free plan | Yes, small profile limit | No, trial only |
| Pricing basis | Active profiles | Contacts and plan tier |
| Learning curve | Moderate for stores | Steeper for advanced maps |
Switching costs and data portability
Both platforms let you export contacts and segment data as CSV files, but automations do not move between them. Expect to rebuild flows by hand in the new tool. Moving from Klaviyo to a different platform means rebuilding abandoned-cart and browse flows and losing the predictive fields that were calculated from your order history. Moving from ActiveCampaign means rebuilding automation maps and remapping tags and custom fields, and your deal history needs a separate export from the CRM. Plan the migration for a quiet sales period and run both systems in parallel for a short time so you do not lose revenue flows.
Deliverability and list hygiene
Both platforms document authentication support, dedicated sending options on higher volumes, and tools for managing bounces and unengaged contacts. Because Klaviyo bills on active profiles, list hygiene directly affects cost, so reviewers recommend sunsetting inactive profiles on a schedule. ActiveCampaign users report a similar discipline, though the cost link is less direct. Whichever tool you choose, set up domain authentication before your first campaign and warm up volume gradually, since reputation problems follow you through any migration.
Which one fits which business
Choose Klaviyo if more than half of your revenue comes from an online store and your growth plan depends on repeat purchases. The ecommerce data model saves setup time and makes segmentation meaningful. Choose ActiveCampaign if you sell services, memberships, or higher-priced B2B offers where a lead moves through stages over weeks and a salesperson needs context. A hybrid situation, such as a store that also runs a lead-generation funnel, favors whichever side drives most of your revenue, because running two platforms doubles cost and splits your customer data.
The bottom line: choose Klaviyo if you run an online store and want order data driving your messages, and choose ActiveCampaign if you sell services or B2B offers and need deep automation with a built-in CRM.
