Platform Review · Updated March 2026
Native Shopify sync · 150,000+ brands
Klaviyo Review 2026
Pricing, Features & Real Verdict
We tested Klaviyo on live e-commerce stores across Shopify and WooCommerce. The strongest email and SMS platform for e-commerce — with per-flow revenue attribution no competitor matches natively. Here's what it costs, who it's right for, and the pricing model change you need to understand before signing up.
KV
Klaviyo
Best for E-commerce Email & SMS
9.3/10
★★
★★
★
ConversionOps Score — March 2026
Start Klaviyo Free
Free up to 250 contacts. No credit card.
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Bottom line: Klaviyo is the default choice for e-commerce email and SMS — native Shopify sync, per-flow revenue attribution, and predictive CLV are genuinely in a category of their own. The trade-off: active-profile billing (since Feb 2025) makes costs unpredictable at scale, and it's expensive relative to alternatives for B2B or non-e-commerce use cases. For Shopify and WooCommerce stores, it's hard to argue with.
ℹ️
This page contains affiliate links. ConversionOps may earn a commission if you sign up — at no extra cost to you. Score based on independent hands-on testing on live stores. Full disclosure →
In this review
Platform Overview
What is Klaviyo?
Klaviyo is an e-commerce marketing platform combining email, SMS, and customer data — purpose-built for online stores. Founded in 2012 and publicly traded since 2023, it serves 150,000+ brands globally, with a dominant position in Shopify's ecosystem.
Klaviyo's core advantage is the depth of its Shopify integration. Real-time, two-way sync means every purchase, browse, cart add, and refund flows into Klaviyo instantly — and every email and SMS send is attributed back to specific revenue. When you run an abandoned cart flow, you see exactly how much revenue that flow generated, broken down by email, by SMS, by variant. No competitor offers this natively at this price point.
All features are available on every plan — automation, segmentation, predictive analytics, A/B testing, and SMS. The plan you're on determines how many active profiles you can hold and messages you can send, not what features you can access. This is genuinely unusual and means a small store gets the same feature set as a large one.
The pricing model changed in February 2025: billing shifted from email volume to active profiles — every subscribed contact in your account, whether you email them or not. This caught many existing customers off-guard with unexpected cost increases, especially those with large lists and low send frequency. List hygiene is now financially critical.
All features are available on every plan — automation, segmentation, predictive analytics, A/B testing, and SMS. The plan you're on determines how many active profiles you can hold and messages you can send, not what features you can access. This is genuinely unusual and means a small store gets the same feature set as a large one.
The pricing model changed in February 2025: billing shifted from email volume to active profiles — every subscribed contact in your account, whether you email them or not. This caught many existing customers off-guard with unexpected cost increases, especially those with large lists and low send frequency. List hygiene is now financially critical.
Pros
✓Best native Shopify sync — real-time, bidirectional
✓Per-flow revenue attribution — see exactly what each flow earns
✓All features on every plan — no locked tiers
✓Predictive analytics — CLV, churn risk, next order date
✓Free plan includes full features up to 250 profiles
✓Native SMS in same platform — unified e-commerce flows
Cons
✗Active-profile billing (since Feb 2025) — costs rise even without sends
✗Expensive at large list sizes vs Omnisend or Mailchimp
✗90-day suppression lock — unsuppressed contacts can't be re-suppressed
✗Less suited for B2B — no CRM, minimal sales pipeline
✗Reviews, CDP and Helpdesk are separate paid add-ons
Score Breakdown
How we scored Klaviyo
Tested on live Shopify and WooCommerce stores. Scored against the e-commerce email marketing category average.
Key Features
What you can actually do with Klaviyo
Tested hands-on across live stores. These are the features that drive real e-commerce revenue — and where Klaviyo pulls away from every alternative.
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Native Shopify Sync
Real-time, two-way sync with Shopify — every order, product view, cart event, and refund flows into Klaviyo instantly. No connector middleware, no sync delays. Events available as flow triggers within seconds. The deepest e-commerce data integration in the email marketing category.
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Per-flow Revenue Attribution
See exactly what each automation flow earns — attributed revenue per email, per SMS, per variant. Abandoned cart showing €12,400/month, post-purchase upsell at €3,200/month, win-back at €1,800/month. This level of native attribution requires third-party tools on ActiveCampaign, Mailchimp, and most competitors.
🎯
Behavioural Segmentation
Segment on any combination of purchase history, product views, email engagement, site behaviour, predictive scores, and custom events. Segments update in real time. Suppression and exclusion rules prevent over-messaging. The segmentation engine is the most granular in the e-commerce marketing category.
🤖
Predictive Analytics
Machine-learning predictions for each contact: predicted customer lifetime value, churn risk score, expected next order date, and predicted gender. These scores feed directly into segmentation — target high-CLV customers with VIP campaigns, catch churn-risk customers with win-back flows before they leave.
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Unified Email + SMS
Email and SMS in a single platform with shared contact profiles, unified flows, and combined revenue attribution. A single abandoned cart flow can send email first, then SMS if no open — with the same revenue tracking across both channels. No separate SMS platform or integration needed.
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Flow Builder
Visual automation builder with conditional splits, A/B test branches, time delays, and smart send-time optimisation. Pre-built flow library covers abandoned cart, welcome series, post-purchase, win-back, browse abandonment, and price drop. Every flow tied directly to revenue reporting.
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A/B Testing
Multi-variant testing on campaigns and flows — subject lines, content, send time, and entire email variants. Statistical significance reporting tells you when a winner is confirmed. Flow A/B tests show revenue impact per variant, not just open rates. Available on all paid plans.
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E-commerce Analytics
Campaign performance, flow analytics, customer cohort analysis, and revenue dashboards — all tied to your store's actual order data. See which campaigns drive first-time buyers vs repeat purchases, average order value by segment, and customer lifecycle stage distribution in real time.
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350+ Integrations
Native integrations with Shopify, WooCommerce, BigCommerce, Magento, Salesforce, Recharge (subscriptions), Yotpo (reviews), Gorgias (helpdesk), and 350+ others. The e-commerce integration library is the deepest in the category — most major tools have bidirectional native sync.
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The revenue attribution gap is the deciding factor: For a Shopify store doing €50k/month, knowing that your abandoned cart flow generates €4,200/month and your win-back flow generates €800/month — with statistical confidence — changes how you allocate time and spend. ActiveCampaign, Mailchimp, and Omnisend offer approximations. Klaviyo shows you exact attributed revenue per flow, per message, per variant. For stores where email drives 20–40% of revenue, this visibility alone justifies the cost.
Pricing & Plans
Klaviyo pricing — what you actually pay in 2026
All features on every plan. Pricing is based on active profiles — every subscribed contact, whether you email them or not. List hygiene directly impacts your monthly bill.
Free
Best for: new stores testing the platform
€0/mo
Up to 250 active profiles · forever
✓500 email sends/month
✓150 SMS credits/month
✓All features included
✓Flows, segmentation, analytics
✓Email support for 60 days
Email
Best for: growing e-commerce stores
€18/mo
From ~€18 for 251–500 profiles · scales with list
✓Everything in Free
✓Unlimited email sends (5× contacts/month)
✓Klaviyo branding removed
✓Email + chat support
✓Predictive analytics & AI
Email + SMS
Best for: stores using multi-channel flows
€30/mo
From ~€30 for 251–500 profiles + 1,250 SMS credits
✓Everything in Email
✓1,250 SMS/MMS credits/month
✓Unified email + SMS flows
✓Multi-channel A/B testing
✓SMS revenue attribution
⚠️
The active-profile billing model (Feb 2025): You pay for every subscribed contact in your account — including those you haven't emailed recently. At 10,000 profiles, Email is ~€150/month. At 50,000 profiles, ~€700/month. At 100,000 profiles, ~€1,200/month. Suppress inactive contacts regularly to control costs. Warning: once you unsuppress a contact, you can't re-suppress for 90 days — budget for this in your list management workflow.
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Pricing at scale vs competitors: At 10,000 contacts — Klaviyo Email ~€150/mo, Omnisend ~€90/mo, ActiveCampaign Starter ~€99/mo, Mailchimp ~€110/mo. Klaviyo is 30–60% more expensive at mid-list sizes. The premium is justified for stores where revenue attribution and Shopify-native flows drive measurable ROI. For stores with low email revenue contribution, the cost gap is harder to justify.
Who It's For
Is Klaviyo right for your business?
Four clear scenarios where Klaviyo wins — and the situations where a cheaper alternative makes more sense.
🛒
Shopify Stores (any size)
The native real-time Shopify sync and per-flow revenue attribution make Klaviyo the obvious choice for Shopify. From a 3-month-old store using the free plan to a €5M/year brand running 20 active flows — Shopify stores get more value from Klaviyo than any alternative.
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DTC Brands Scaling Revenue
When email drives 25–40% of your revenue and you need to optimise every flow with statistical confidence, Klaviyo's attribution and A/B testing in flows is the only way to manage this at scale. No other platform shows you exactly which message in a 5-email sequence generated the most revenue.
📱
Multi-channel E-commerce
Running email and SMS from the same platform with unified flows is Klaviyo's strongest differentiator. Abandoned cart email → wait 1 hour → abandoned cart SMS if no open — with combined revenue attribution across both channels. This requires two separate tools on most alternatives.
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Data-Driven Marketing Teams
Predictive CLV, churn risk scores, and next-order-date predictions feed directly into segmentation. Teams that want to build VIP programs for high-CLV customers and proactive win-back flows for churn-risk customers need Klaviyo's predictive layer — it's not replicable with standard segmentation.
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Klaviyo is not the right choice if: you're a B2B or SaaS business (use ActiveCampaign — better automation and CRM integration), you have a large list with low send frequency and the active-profile billing is uneconomical (Omnisend or Mailchimp will be cheaper), or you're a non-Shopify store where the native integration advantage doesn't apply as strongly (ActiveCampaign has a better WooCommerce flow for B2B use cases).
vs Competitors
Klaviyo vs ActiveCampaign vs Omnisend vs Mailchimp
The four most commonly compared platforms — where Klaviyo wins and where competitors close the gap.
← Scroll to see full comparison
| Feature | Klaviyo | ActiveCampaign | Omnisend | Mailchimp |
|---|---|---|---|---|
| E-commerce Core | ||||
| Native Shopify sync | ★ Real-time | Via connector | ✓ Native | ✓ Native |
| Revenue attribution | ★ Per-flow native | Basic | ✓ Good | Basic |
| Predictive analytics | ★ CLV + churn + next order | Predictive send only | ✓ | Basic |
| Automation & Email | ||||
| Flow / automation builder | ✓ E-commerce best | ★ Deepest logic | ✓ Good | Basic |
| SMS built-in | ✓ Native unified | Add-on | ✓ Native | Add-on |
| A/B test in flows | ✓ | ✓ | ✓ | Campaigns only |
| Pricing & Value | ||||
| Free plan | ✓ 250 profiles | ✗ | ✓ 250 contacts | ✓ 500 contacts |
| Price at 10k contacts | ~€150/mo | ~€99/mo | ~€90/mo | ~€110/mo |
| Best suited for | E-commerce / Shopify | B2B / SaaS | E-commerce budget | Small / content brands |
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How to choose: Shopify store, revenue attribution matters → Klaviyo. B2B, SaaS, or complex automation logic → ActiveCampaign. E-commerce on a budget, SMS needed → Omnisend. Simple email, content-focused brand → Mailchimp. See our full ActiveCampaign vs Klaviyo comparison →
Final Verdict
Is Klaviyo worth it in 2026?
9.3/10
For Shopify stores, Klaviyo is the default choice and the gap vs alternatives is real. Per-flow revenue attribution, real-time Shopify sync, and predictive CLV are features that competitors either don't have natively or approximate poorly. If email drives 20%+ of your store revenue, the analytical visibility Klaviyo provides changes how you allocate your marketing effort.
The 2025 active-profile billing change is a genuine concern at scale — list hygiene is now a financial discipline, not just a deliverability one. Suppress inactive contacts regularly, understand the 90-day suppression lock, and model your cost trajectory before you build a large list on Klaviyo. For stores that do this, the ROI is strong. For those that don't, costs can compound faster than revenue growth.
Why Choose Klaviyo
✓Best native Shopify sync — real-time, bidirectional, zero config
✓Per-flow revenue attribution — no competitor matches this natively
✓Predictive CLV, churn risk, and next order date in segmentation
✓All features on every plan — no locked tiers
✓Unified email + SMS flows with combined revenue tracking
Limitations to Know
✗Active-profile billing — costs rise even without sends to a contact
✗30–60% more expensive than alternatives at 10,000+ contacts
✗90-day suppression lock — unsuppressed contacts can't be re-suppressed
✗Not suited for B2B — no CRM, no sales pipeline management
FAQ
Klaviyo — common questions
The most common questions from e-commerce merchants evaluating Klaviyo.
Is Klaviyo free?+
Yes — Klaviyo's free plan is genuinely functional, not a stripped-down trial. Up to 250 active profiles, 500 email sends/month, and 150 SMS credits — with full access to flows, segmentation, A/B testing, and analytics. Most small stores can operate on the free plan for months before needing to upgrade. Unlike ActiveCampaign (no free plan), Klaviyo lets you build and test your full automation setup before paying.
How much does Klaviyo cost?+
The Email plan starts at ~€18/month for 251–500 active profiles. Pricing scales with your active profile count, not email volume: ~€55/month at 1,000 profiles, ~€150/month at 10,000 profiles, ~€700/month at 50,000 profiles. Email + SMS adds approximately €12–15/month at entry tier for 1,250 SMS credits. Since the Feb 2025 change, all subscribed contacts count as active profiles — even those you haven't emailed recently.
What changed with Klaviyo pricing in 2025?+
In February 2025, Klaviyo shifted from volume-based billing (paying per email sent) to active-profile billing (paying per subscribed contact). This means you now pay for every contact in your account whether you email them or not. Businesses with large, low-engagement lists saw costs increase significantly. Existing customers received an "appreciation discount" capping any increase at 25%. Going forward, regular list suppression is essential — clean your list of inactive contacts every 90–180 days to avoid paying for profiles you're not monetising.
Is Klaviyo better than ActiveCampaign?+
For e-commerce: Klaviyo. For B2B and SaaS: ActiveCampaign. Klaviyo wins on native Shopify sync, per-flow revenue attribution, predictive analytics, and e-commerce segmentation. ActiveCampaign wins on automation depth (conditional branching, lead scoring, CRM integration) and cost for non-e-commerce use cases. If your primary use case is running email and SMS flows for an online store, Klaviyo's e-commerce data layer is meaningfully better. See the full comparison →
Does Klaviyo work with WooCommerce?+
Yes — Klaviyo has a native WooCommerce plugin that syncs order data, abandoned carts, and customer profiles. The integration is solid for abandoned cart flows, post-purchase sequences, and customer segmentation. It's not as seamless as the Shopify sync — some advanced triggers (like browse abandonment) require additional setup. For WooCommerce stores where email automation is important, Klaviyo is still one of the strongest options, though ActiveCampaign is worth comparing for stores with a B2B component.
What is the 90-day suppression lock?+
If you unsuppress a contact (re-activate them after suppressing), Klaviyo prevents you from re-suppressing that contact for 90 days. This means if you unsuppress someone to attempt a re-engagement campaign and they don't engage, you'll be paying for them in your active profile count for 3 months before you can suppress again. This is a significant operational detail — plan re-engagement campaigns carefully and only unsuppress contacts you're confident have re-engagement potential.
Is Klaviyo good for SMS marketing?+
Yes — Klaviyo's SMS is genuinely unified with email, not bolted on. A single flow can send email first, then SMS if no open — with combined revenue attribution across both channels. SMS credits are included in the Email + SMS plan (1,250 credits/month at entry). Additional credits are available at variable rates. For e-commerce stores where SMS drives 5–15% of revenue, Klaviyo's unified approach is significantly cleaner than running separate SMS and email platforms.
How do I keep Klaviyo costs under control?+
Three practices: (1) Suppress inactive contacts every 90–180 days — anyone who hasn't opened in 6+ months should be suppressed unless you're running a re-engagement campaign. (2) Use Klaviyo's engagement segments to identify and remove genuinely unengaged contacts before they accumulate. (3) Be careful with unsuppression — the 90-day lock means re-activating the wrong contacts can cost you 3 months of active-profile billing. Proactive list management saves significantly more money than it costs in time.
Klaviyo — 9.3/10Free up to 250 contacts.
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