Quick verdict
Choose Omnisend for faster ecommerce execution. Choose Klaviyo when customer data and lifecycle sophistication justify the extra work.
Omnisend and Klaviyo both connect ecommerce behavior with campaigns, automations and segmentation. Both can support welcome, cart, browse, post-purchase and re-engagement programs. The meaningful difference is not whether either platform can send an abandoned-cart email; it is how much data depth, branching logic and operational control the business needs around that journey.
Omnisend is the stronger starting point for a smaller or mid-size store that wants commerce-aware automation without adopting a broad customer-data operating system. Its published plans begin at $16 per month for Standard and $59 for Pro, with prebuilt automation templates, store-focused segmentation, product content and push notifications. New customers need Pro for SMS and purchase SMS credits separately.
Klaviyo is the stronger choice for a brand with richer event data, a larger integration stack and marketers who will actively use conditional splits, predictive analytics, profile properties and advanced segmentation. Its flows can branch on customer status, order value, product category, acquisition source and predictive data. That depth is valuable only when the team has the data quality and time to operate it.
Pricing requires more care on both platforms. Omnisend bills Standard and Pro according to subscribers plus non-subscribers who can receive behavioral or transactional automations. Klaviyo prices Profile and Email plans according to active profiles and email volume; an active profile can include a checkout-created person who remains emailable even without ordinary newsletter consent. A subscribed-list count alone is therefore not a reliable budget comparison.
Choose Omnisend when
- You run a Shopify or WooCommerce store with a lean marketing team.
- You want prebuilt ecommerce automations and a visual workflow that is easier to deploy quickly.
- A clearly published $16 Standard starting point matters more than the deepest customer-data model.
- Email and push notifications are central, while SMS is optional or can wait until Pro.
- You need useful store segmentation but do not expect to build highly branched predictive journeys.
- You prefer a narrower ecommerce marketing product over a larger B2C CRM ecosystem.
Choose Klaviyo when
- Your store has enough order, browsing and integration data to support granular personalization.
- Your lifecycle team will use conditional and trigger splits across many customer states.
- Predictive CLV, churn signals and deeply dynamic segments can influence real campaigns.
- You need a larger integration and API ecosystem across loyalty, subscriptions, support and data tools.
- Email, SMS, push and external webhook actions need to work inside sophisticated flows.
- You accept more implementation and data-hygiene work in exchange for greater control.
Choose neither when
- Choose MailerLite when the business mainly needs affordable newsletters, forms and straightforward automations rather than store-event depth.
- Choose Kit when the company is creator-led and monetizes expertise, courses or digital products through an audience.
- Consider a broader CRM or sales-automation platform when pipelines, account management and non-commerce processes are more important than product and order behavior.
Category scorecard
Who wins each part of the comparison?
The winner labels are directional judgments based on current plan structure and intended buyer—not laboratory test results.
| Category | Winner | Why |
|---|---|---|
| Best for smaller ecommerce teams | Omnisend | The product has a narrower commerce-marketing scope, prebuilt workflows and a lower published paid starting point. |
| Best for advanced ecommerce teams | Klaviyo | Its customer-data model, split logic, predictive analytics and integration depth support more sophisticated lifecycle operations. |
| Free email allowance | Tie | Both free plans support up to 250 contacts or profiles and 500 monthly email sends, though the contact definitions and mobile benefits differ. |
| Published paid entry price | Omnisend | Standard starts at $16 per month. Klaviyo requires a profile-and-email calculator for the applicable tier above free. |
| High-volume email sending | Omnisend | Pro starts at $59 and includes unlimited email, while Klaviyo email plans combine profile and message allowances. |
| Automation depth | Klaviyo | Klaviyo documents 60+ templates, cross-channel flows, webhooks and extensive conditional and trigger split logic. |
| Faster automation setup | Omnisend | Its documentation emphasizes a user-friendly visual builder and prebuilt ecommerce workflows designed for quick deployment. |
| Segmentation depth | Klaviyo | Segments can combine integration data, custom API events and predictive attributes such as projected customer value. |
| Approachable ecommerce segmentation | Omnisend | It covers profile, engagement, website and shopping behavior, including AI-assisted segment creation, without requiring the same data-operation depth. |
| SMS access for a new free account | Klaviyo | Klaviyo includes $5 of mobile messages on Free. New Omnisend accounts created from May 4, 2026 require Pro plus a separate SMS credit subscription. |
| Integration and data ecosystem | Klaviyo | Klaviyo states that flows can use data from more than 350 integrated tools and APIs. |
| Billing simplicity | Neither | Both can charge for more people than the visible newsletter-subscriber count, so database hygiene and forecasting are essential. |
| Overall | Depends on operational maturity | Omnisend is the better execution-first choice. Klaviyo is the better intelligence-first choice. |
Pricing comparison
Omnisend vs Klaviyo pricing: compare the database—not just subscribers
| Stage | Omnisend | Klaviyo | What matters |
|---|---|---|---|
| Free | Up to 250 unique contacts and 500 emails/month. Core platform features are available, but new accounts do not get SMS on Free. | Up to 250 active profiles, 500 emails/month and $5 of mobile messages. Email support is available for the first 60 days. | The headline email limits are similar. Klaviyo has the clearer free mobile-testing advantage. |
| Entry paid | Standard starts at $16/month and provides contact count × 12 email credits, unlimited push notifications and live support chat. SMS is unavailable to new Standard customers. | Profile and Email pricing depends on the active-profile tier and email volume selected in Klaviyo's calculator. Paid users receive email and chat support. | Omnisend publishes the lower, clearer starting point; exact same-database pricing must be calculated in both tools. |
| Higher-volume email | Pro starts at $59/month with unlimited email and push. Pricing still adjusts according to billable contacts. | Email allowance is tied to the profile tier; Klaviyo states the standard limit is 10 times the maximum profiles in the plan. | Omnisend can be attractive for frequent email sending, while Klaviyo's value case rests more on data and targeting depth. |
| SMS and mobile | For new subscriptions from May 4, 2026, SMS requires Pro and a separately billed credit subscription with rates starting at $0.007 per SMS. | Mobile Messaging uses a separate monthly dollar budget. Rates depend on channel, destination, number type and message characteristics; unused dollars do not roll over. | Neither platform should be budgeted by email-plan price alone when SMS is material. |
| Who drives the tier? | Billable contacts include subscribers and non-subscribers who may receive behavioral or order-related automation. Unsubscribers are excluded. | Active profiles include anyone who can be emailed through Klaviyo, regardless of consent status. Suppressed profiles are excluded from Profile and Email billing. | A checkout customer can affect pricing on either platform even when that person is not a conventional newsletter subscriber. |
Omnisend's pricing looks simpler at first because Standard and Pro have public starting prices. The important detail is that the monthly tier automatically adjusts according to billable contacts. Omnisend defines these as subscribers plus non-subscribers who can receive automations, including some purchasers, abandoned-cart contacts, account creators and imported contacts without an opt-in date. Unsubscribers are excluded.
Standard provides 12 email credits per billable contact in each billing cycle. A database of 3,000 billable contacts therefore receives 36,000 monthly email credits. Pro removes the email-send ceiling, but the account still moves through contact tiers. Stores that send many campaigns and flows can value unlimited email, provided the contact-count cost remains competitive.
Klaviyo uses a Profile and Email plan based on active profiles and emails sent. An active profile is any profile that remains emailable through Klaviyo, including some people created through checkout or general engagement without newsletter consent. The plan must cover the active-profile total, and Klaviyo can move the account to a compliant tier for the next billing cycle. Suppressing genuinely inactive profiles is therefore both a deliverability and cost-control task.
The platforms also treat mobile messaging differently. Omnisend's current new-customer structure restricts SMS to Pro and bills SMS credits separately. Klaviyo allows limited mobile testing on Free and sells a separate monthly Mobile Messaging budget. Neither approach is a simple all-inclusive email-plus-SMS price, so compare a realistic monthly channel mix.
The most reliable cost model uses four inputs: current billable or active profiles, expected twelve-month customer growth, monthly campaign-and-flow email volume, and mobile-message volume by destination. Run those numbers in both official calculators and include the staff or agency time needed to operate the platform. A lower software invoice can still be the worse economic choice if the team cannot execute; a more powerful platform can be wasted spend if its advanced data is unused.
Both platforms allow up to 250 contacts or active profiles and 500 monthly emails. Klaviyo also includes $5 of mobile messages, while Omnisend no longer gives SMS access to new Free or Standard customers. Neither free tier is a long-term operating plan for a growing store, and both can hit limits through ecommerce-created profiles rather than newsletter signups alone.
Feature-by-feature
Where the platforms separate in real ecommerce operations
Setup and day-to-day usability
OmnisendOmnisend is designed around a recognizable ecommerce marketer's workflow: connect the store, import products and customer behavior, select a prebuilt workflow, adjust messages and launch. Its official automation material emphasizes a user-friendly visual editor with triggers, conditions, actions and prebuilt templates.
Klaviyo also provides a drag-and-drop flow builder and more than 60 templates, but its wider data model introduces more decisions. Teams can use profile properties, events, predictive fields, integration data and several split types. That flexibility is valuable, but it raises the implementation burden and the number of ways a flow can be misconfigured.
MailScouter has not independently timed onboarding or measured task completion in controlled user tests. The Omnisend win here is an editorial assessment of product scope and documented workflow—not a claimed laboratory usability benchmark.
Ecommerce data and customer profiles
KlaviyoBoth tools ingest store behavior such as orders, product views, carts and customer attributes. Omnisend uses this data to power ecommerce campaigns, segmentation and lifecycle automations in a focused marketing product.
Klaviyo makes the profile and event layer more central to the entire platform. Its flows can use data from more than 350 integrated tools and APIs, and profiles can combine ecommerce, service, engagement and custom-event data. That creates a stronger foundation for a brand that wants a broad customer source of truth for activation.
The trade-off is governance. More sources and properties require consistent event naming, consent handling, suppression policy and quality assurance. A store with weak data discipline will not automatically become more sophisticated by choosing the platform with the deeper profile model.
Lifecycle automation
KlaviyoOmnisend covers the workflows most stores need first: welcome, cart abandonment, browse abandonment, order and shipping communication, post-purchase, cross-sell and reactivation. Customer data such as browsing behavior, purchase history and personal details can personalize messages, and the visual builder is intended to keep setup approachable.
Klaviyo goes further in documented branching depth. Flows can split by customer status, total spending, location, list membership, predicted attributes, random samples, cart value, product category, acquisition source and other trigger data. Email, SMS and push can be combined, while webhooks can activate external systems.
That makes Klaviyo the stronger platform for a lifecycle team running materially different journeys for first-time buyers, VIP customers, high-value prospects, subscription customers and churn-risk groups. Omnisend remains the more proportionate choice when the store needs solid standard workflows rather than a highly engineered journey architecture.
Segmentation and predictive intelligence
KlaviyoOmnisend provides filters across profile data, engagement, subscription status, website interactions and shopping behavior. Its AI segmentation can create a segment from a described goal such as frequent buyers or churn risk. That is useful for teams that want commerce-aware targeting without building every rule manually.
Klaviyo's segmentation can combine integration metrics, custom API events and predictive analytics in one audience definition. Official examples include customers with recent orders, support activity and a predicted customer lifetime value above a chosen threshold. Predictive fields can support CLV and future-behavior use cases when the account has enough appropriate order history.
Predictions are probabilistic, not guarantees. Klaviyo explicitly notes that predicted values are most useful across groups rather than as exact forecasts for one person. The advantage is the range of usable signals—not certainty about an individual customer's next action.
Campaign and product-content workflow
OmnisendOmnisend's narrower ecommerce focus is helpful when the recurring task is building store campaigns quickly. Product-aware content, discount workflows, forms, campaigns and automations live inside a product designed specifically for commerce marketers.
Klaviyo offers capable templates, editors and personalization, but the platform's main differentiation is not a simpler campaign-production experience. Its value becomes clearer when campaign audiences and content are driven by the richer profile, event and segment system.
A lean team that mainly sends product launches, promotions and standard lifecycle messages may prefer Omnisend's more direct path. A larger team that sees every campaign as one activation of a broader customer-data strategy may prefer Klaviyo.
Email, SMS and push channels
Klaviyo—with caveatsOmnisend combines email and unlimited push notifications on Standard and Pro. Under the current rules for new subscriptions, SMS is available only on Pro and requires a separately billed SMS Credits Subscription. This makes Standard primarily an email-and-push plan for new customers.
Klaviyo supports email, mobile messaging and push, and the free plan includes a small $5 mobile allowance. Paid mobile usage is still separate from Profile and Email pricing, and the monthly dollar budget resets without unused value carrying over.
Klaviyo wins for earlier SMS access and deeper cross-channel flow logic. The caveat is that mobile pricing varies by geography, channel and message characteristics. Businesses with meaningful SMS volume should model actual destinations rather than compare only the advertised email tiers.
Reporting and attribution
KlaviyoOmnisend provides reports and ecommerce performance visibility intended to show campaign and automation outcomes. For many smaller stores, the important operational questions are whether a workflow sends correctly, which messages produce orders and where engagement is declining.
Klaviyo positions reporting as part of a broader data and analytics environment. The free tier includes built-in dashboards, campaign metrics and revenue attribution, while paid and optional analytics products can extend the analysis. The platform's richer profile and event structure can support more detailed breakdowns when the data is configured correctly.
Neither vendor's attributed revenue should be treated as independently verified profit. Attribution depends on windows, models, channel overlap and tracking configuration. Reconcile platform reporting with store analytics and finance data before making budget decisions.
Support and operational help
Depends on the tierOmnisend Standard includes live support chat, and an Account Expert is listed for plans at $400 per month or higher. Pro adds dedicated support language, but the exact service level depends on the plan and account.
Klaviyo gives free users email support for the first 60 days, followed by community and educational resources. Paid users receive email and chat support, while qualifying higher tiers may receive onboarding or customer-success assistance.
Support quality, speed and resolution have not been independently benchmarked for this comparison. The practical takeaway is to verify the support channel available at the exact tier you will buy and whether the team needs strategic help or only technical troubleshooting.
Scalability and ecosystem
KlaviyoOmnisend can scale with growing contact tiers and high email volume, and it remains attractive for merchants that want one focused ecommerce messaging platform. Its simpler scope can itself be a scaling advantage for a team that does not want to manage a larger system.
Klaviyo's broader ecosystem, APIs, hundreds of integrations, customer profiles, optional analytics and service products make it the stronger architectural choice for a more complex B2C stack. Loyalty, subscriptions, support, mobile apps and custom events can all become inputs to lifecycle marketing.
The decisive question is whether the brand will use that ecosystem. Paying for and maintaining a sophisticated platform before the operating team is ready can slow execution rather than accelerate it.
Practical scenarios
Which platform fits these common buyers?
| Scenario | Best starting choice | Reason |
|---|---|---|
| New Shopify store with one marketer and basic welcome/cart/post-purchase needs | Omnisend | The narrower commerce workflow and public $16 Standard entry point are easier to adopt proportionately. |
| Established DTC brand with dedicated lifecycle and analytics specialists | Klaviyo | Granular event data, predictive fields and advanced split logic can support differentiated customer journeys. |
| Store sends very frequently to a moderate contact database | Model Omnisend Pro | Unlimited email can be valuable, but the billable-contact tier still needs forecasting. |
| Brand needs email, SMS, push and webhook-driven external actions in complex flows | Klaviyo | Its documented cross-channel flow and webhook capabilities provide more orchestration depth. |
| Small WooCommerce store wants product campaigns and standard automations | Omnisend | It provides store-focused features without requiring the broader Klaviyo operating model. |
| Brand wants to target predicted high-CLV or churn-risk groups | Klaviyo | Predictive data can be used in segmentation and flow logic when data requirements are met. |
| Business only needs newsletters and a few simple forms | Neither | A general email platform such as MailerLite may be cheaper and easier than either commerce specialist. |
| Current database contains many old checkout and inactive profiles | Clean the data first | Both platforms can price beyond the opted-in newsletter count, so migration without suppression and consent review can distort cost. |
Switching platforms
Migration is a workflow project—not a CSV upload.
Moving between Omnisend and Klaviyo is not simply exporting contacts and importing a CSV. The valuable assets are the consent records, suppression status, customer properties, events, segments, templates, forms, sending domains, automations and reporting continuity. Build a migration inventory before changing subscriptions.
Start with contact-state mapping. Omnisend distinguishes channel-level subscribed, non-subscribed and unsubscribed contacts, while its billing can include subscribed and non-subscribed people. Klaviyo distinguishes active and suppressed profiles for Profile and Email billing. Preserve consent evidence and do not turn checkout-created non-subscribers into campaign subscribers during migration.
Next map events and flow triggers. Product viewed, added to cart, checkout started, order placed, fulfilled, refunded and subscription events may have different names or payload structures after the ecommerce integration changes. Rebuild segments and conditional logic against the target platform's actual event schema rather than copying labels mechanically.
Run the platforms in parallel only where consent, transactional-message behavior and duplicate-send controls are understood. Pause equivalent flows in one system before activating them in the other. Test with internal profiles across new subscriber, first buyer, repeat buyer, abandoned cart and unsubscribed states.
Finally, warm the new sending setup responsibly. Authenticate the domain, confirm tracking and preference pages, migrate engaged audiences first and monitor bounces, complaints and engagement. Historical vendor dashboards will not necessarily transfer, so export the reporting data needed for year-over-year analysis before closing the old account.
Common questions
Omnisend vs Klaviyo FAQ
Is Omnisend cheaper than Klaviyo?
Omnisend has the clearer lower published entry price: Standard starts at $16 per month and Pro at $59. The exact answer depends on Omnisend billable contacts versus Klaviyo active profiles, email volume, SMS usage and discounts. Use the same cleaned database and channel forecast in both calculators.
Which is better for Shopify: Omnisend or Klaviyo?
Omnisend is usually the more approachable starting point for a smaller Shopify team. Klaviyo is usually the stronger choice for an established brand that will use deeper customer data, complex flows, predictive segmentation and a larger integration ecosystem.
Do Omnisend and Klaviyo count only email subscribers?
No. Omnisend billable contacts include subscribers plus certain non-subscribers who may receive automations. Klaviyo active profiles include anyone who remains emailable through the platform, including some checkout-created profiles without ordinary marketing consent. Omnisend excludes unsubscribers; Klaviyo excludes suppressed profiles from Profile and Email billing.
Which platform has better automation?
Klaviyo has the deeper documented automation system, including more than 60 templates, conditional and trigger splits, predictive data, cross-channel messages and webhooks. Omnisend has a more approachable builder for common ecommerce journeys and may be the better operational fit for a lean team.
Can I send SMS on the Omnisend free plan?
Not as a new subscriber under the pricing introduced May 4, 2026. New Omnisend customers need Pro and a separately purchased SMS credit subscription. Legacy customers can have different terms.
Does Klaviyo include SMS for free?
The Klaviyo free plan includes $5 of mobile messages per month. Paid mobile messaging uses a separate monthly dollar budget and pricing varies by destination, channel and message characteristics.
Should I migrate from Omnisend to Klaviyo as my store grows?
Growth alone is not enough reason. Migrate when richer event data, advanced segmentation, predictive fields, integration depth or complex lifecycle branching will produce enough operational value to justify the higher implementation and management burden.
Has MailScouter tested deliverability for this comparison?
No. This page is based on official pricing and product documentation. MailScouter has not independently benchmarked inbox placement, support response times, attribution accuracy or long-term production reliability for these platforms.
Primary sources
Official sources checked for this comparison
Plans and product details change. The fixed verification date makes it clear when these claims were last checked.
- Omnisend pricing plans 2026 ↗ Checked July 31, 2026
- Omnisend paid-plan charges and SMS billing ↗ Checked July 31, 2026
- Omnisend contact and recipient statuses ↗ Checked July 31, 2026
- Omnisend ecommerce automation ↗ Checked July 31, 2026
- Omnisend ecommerce segmentation ↗ Checked July 31, 2026
- Omnisend reports and insights ↗ Checked July 31, 2026
- Klaviyo pricing ↗ Checked July 31, 2026
- How Klaviyo billing works ↗ Checked July 31, 2026
- Klaviyo active-profile management ↗ Checked July 31, 2026
- Klaviyo flows and automation ↗ Checked July 31, 2026
- Klaviyo segmentation ↗ Checked July 31, 2026
- Klaviyo predictive analytics ↗ Checked July 31, 2026
- Klaviyo free and paid plan differences ↗ Checked July 31, 2026
- Klaviyo reporting ↗ Checked July 31, 2026
Approachable ecommerce automation
Omnisend
A store-first email platform with prebuilt lifecycle workflows, ecommerce segmentation and a clearer starting path for smaller teams.
Advanced customer intelligence
Klaviyo
A deeper customer-data and automation platform for brands that can use granular events, predictive signals and complex lifecycle branching.