Email marketing remains the highest-ROI channel for ecommerce brands. Study after study confirms that email generates more revenue per pound spent than social media, paid advertising, or content marketing. The question for Shopify store owners is not whether to invest in email — it is which tool to use.
Shopify Email and Klaviyo are the two most common choices, and they represent genuinely different approaches. Shopify Email is built into Shopify's admin, is simple to use, and is effectively free for most small stores. Klaviyo is a standalone email marketing platform purpose-built for ecommerce, with deep Shopify integration, advanced automation, and sophisticated segmentation — at a higher price point.
This comparison is not about declaring a universal winner. Shopify Email is genuinely the right choice for some stores. Klaviyo is worth the investment for others. The goal here is to help you understand where the line sits for your business. Having set up and managed both platforms across dozens of stores, I can offer a practitioner's perspective on the real-world differences.
What each platform is
Shopify Email is Shopify's native email marketing tool, available directly in the Shopify admin. It launched in 2019 and has improved steadily, adding automation, segmentation, and template features. It is designed to be simple, accessible, and tightly integrated with your Shopify store data. Shopify Email is included with every Shopify plan at no additional cost (with 10,000 free emails per month).
Klaviyo is a dedicated email and SMS marketing platform built specifically for ecommerce. Founded in 2012, it has become the dominant email platform for Shopify stores, used by over 150,000 brands. Klaviyo integrates with Shopify as a sales channel, syncing customer data, order history, browsing behaviour, and product catalogues in real time. It is significantly more powerful than Shopify Email — and significantly more expensive.
The analogy: Shopify Email is like your phone's built-in camera app — simple, convenient, and good enough for most everyday photos. Klaviyo is like a professional camera — more controls, better results for serious work, but requires more knowledge and investment.
Automation and flows
This is the single most important difference between the two platforms, and it is where Klaviyo's value proposition is strongest.
Shopify Email automation
Shopify offers basic automation through its Shopify Automations feature (separate from Shopify Email but complementary). Available automations include abandoned cart reminders, welcome email series, first purchase thank-you, and winback emails. These automations work and cover the essentials, but they are limited in flexibility — you cannot create complex branching logic, multi-step conditional flows, or highly personalised sequences based on granular customer behaviour.
Klaviyo automation
Klaviyo's flow builder is the platform's crown jewel. You can create sophisticated multi-step automations triggered by virtually any customer action — purchase, browse, add to cart, abandon checkout, open an email, click a link, join a segment, or hit a custom event. Flows support conditional branches (if/then logic), time delays, A/B splits, and dynamic content blocks that change based on recipient data.
A well-configured Klaviyo account typically runs 10-15 automated flows generating revenue around the clock — abandoned cart sequences, browse abandonment, post-purchase follow-ups, winback campaigns, VIP nurture sequences, cross-sell flows, and more. For details on the most impactful flows, see our guide to 7 Klaviyo flows every store needs. This level of automation sophistication is simply not possible with Shopify Email.
Segmentation
Effective email marketing depends on sending the right message to the right people at the right time. Segmentation is how you achieve this.
Shopify Email segmentation
Shopify Email leverages Shopify's customer segmentation feature, which supports basic segments based on purchase history, location, email subscription status, order count, and total spend. You can create segments like "customers who ordered in the last 30 days" or "customers in London who have spent over £100." These segments update dynamically and cover many common use cases.
Klaviyo segmentation
Klaviyo's segmentation is dramatically more powerful. You can segment based on any combination of purchase data, browsing behaviour, email engagement, predicted lifetime value, product affinity, RFM (recency, frequency, monetary) scores, custom properties, and more. Segments update in real time and can use complex boolean logic (AND, OR, NOT conditions).
Examples of Klaviyo segments that are not possible in Shopify Email: "customers who browsed a specific product category three times in the last week but did not purchase," "customers with a predicted lifetime value in the top 20% who have not opened an email in 60 days," or "customers who purchased product A but not product B and are located in the UK." This granularity enables highly targeted campaigns that significantly outperform batch-and-blast sending.
Email design and templates
Both platforms offer visual email editors, but the depth of functionality differs considerably.
Shopify Email provides a clean drag-and-drop editor with templates that automatically inherit your store's branding (logo, colours, fonts). Templates can pull in products directly from your catalogue. The editor is simple and fast for creating basic campaigns — newsletters, promotions, and product announcements. What it lacks is advanced personalisation blocks, conditional content sections, and dynamic product recommendations.
Klaviyo's email editor is more feature-rich. Beyond standard drag-and-drop blocks, it supports dynamic content blocks that show different content based on recipient data, product recommendation blocks powered by Klaviyo's AI, conditional show/hide logic for sections, and custom HTML blocks for advanced designs. Klaviyo also offers a larger template library with ecommerce-specific designs optimised for conversion.
For brands that want personalised emails where the content adapts to each recipient's behaviour and preferences, Klaviyo provides tools that Shopify Email does not offer. For brands sending straightforward promotional campaigns, Shopify Email's simpler editor may actually be preferable for its speed and ease of use.
Pricing comparison
Pricing is where Shopify Email has its most compelling advantage.
Shopify Email pricing
- First 10,000 emails/month: free (included with all Shopify plans)
- Additional emails: $1 per 1,000 emails
- No additional monthly fee — included with your Shopify subscription
Klaviyo pricing
- Free tier: up to 250 contacts, 500 email sends/month
- 251-500 contacts: from $20/month
- 501-1,000 contacts: from $30/month
- 1,001-1,500 contacts: from $45/month
- 5,000 contacts: approximately $100/month
- 10,000 contacts: approximately $150/month
- 25,000 contacts: approximately $400/month
- SMS: additional cost based on volume
For a store with 5,000 subscribers sending four campaigns per month plus automated flows, the cost difference is stark — approximately £15-25/month on Shopify Email versus approximately £100-150/month on Klaviyo. However, Klaviyo's advanced automation and segmentation typically generate significantly more revenue per subscriber, often delivering a net positive ROI despite the higher cost. The real question is whether the additional revenue Klaviyo generates exceeds its additional cost — and for most established stores, it does.
Analytics and reporting
Shopify Email provides basic analytics — open rates, click rates, and revenue attributed to each campaign. The integration with Shopify's analytics dashboard provides a unified view of email performance alongside other channel data. For basic performance monitoring, this is sufficient.
Klaviyo's analytics are substantially deeper. Beyond standard email metrics, Klaviyo provides flow performance dashboards, revenue attribution per flow and per email within a flow, customer lifetime value analysis, cohort reporting, deliverability monitoring, and predictive analytics including churn risk scoring and expected date of next order. Klaviyo's benchmarking feature also allows you to compare your performance against similar brands in your industry. For a broader view of analytics, see our guide to ecommerce analytics setup.
SMS capabilities
Klaviyo includes SMS marketing as part of its platform, allowing you to build unified email and SMS flows, segment for SMS campaigns using the same data, and manage both channels from a single interface. SMS support includes UK numbers and compliance tools for GDPR and PECR.
Shopify Email does not include SMS marketing. For SMS, Shopify merchants typically need a separate tool. This is a meaningful difference for brands investing in multi-channel marketing, where coordinating email and SMS campaigns from a single platform significantly improves workflow efficiency and customer experience.
A/B testing
Shopify Email supports basic A/B testing for subject lines. Klaviyo supports A/B testing for subject lines, sender names, email content, send times, and flow branches. Klaviyo also supports multivariate testing and can automatically send the winning variation to the remainder of your list. For brands optimising their email programme systematically, Klaviyo's testing capabilities are substantially more useful.
Deliverability
Both platforms maintain strong deliverability reputations. Shopify Email sends from Shopify's shared sending infrastructure, which benefits from Shopify's scale and reputation. Klaviyo provides dedicated sending domains, DKIM and SPF authentication, and deliverability monitoring tools. For most stores, deliverability is comparable between the two platforms. Stores with very large lists or high-frequency sending may see better deliverability on Klaviyo due to dedicated infrastructure and more granular reputation management.
Integrations and data
Shopify Email is deeply integrated with Shopify — it lives in the Shopify admin and accesses store data natively. However, it does not integrate with external tools or data sources.
Klaviyo integrates with over 350 tools including review platforms, loyalty programmes, help desks, advertising platforms, and analytics tools. This allows you to use data from across your marketing stack to inform email segmentation and personalisation. For example, you can trigger emails based on review submissions through Yotpo, loyalty tier changes through Smile.io, or support tickets through Gorgias. For our full Klaviyo email marketing services, this integration depth is central to the value we deliver.
When to upgrade from Shopify Email to Klaviyo
The right time to move from Shopify Email to Klaviyo is typically when:
- Your email list exceeds 1,000-2,000 active subscribers
- You want to build multi-step automated flows beyond basic welcome and abandoned cart
- You need advanced segmentation based on browsing behaviour or purchase patterns
- You want to add SMS marketing alongside email
- Email is becoming a meaningful revenue channel and you want to optimise it seriously
- You need A/B testing beyond subject lines
- You want predictive analytics and customer lifetime value data
Many successful stores start with Shopify Email, build their list to a viable size, and then transition to Klaviyo when the investment can be justified by the list's revenue potential. This phased approach is pragmatic and cost-effective. For strategies on building effective email sequences, see our guide to abandoned cart sequences that convert.
The verdict
Choose Shopify Email if:
- You are a new or small store with fewer than 1,000 subscribers
- You want a free, simple email tool that lives in your Shopify admin
- You send basic campaigns — newsletters, promotions, product launches
- You do not need complex automation or advanced segmentation
- You are watching costs carefully in the early stages of your business
- You want to start email marketing quickly without learning a new platform
Choose Klaviyo if:
- You have 1,000+ subscribers and email is a meaningful revenue channel
- You want sophisticated automated flows running around the clock
- You need advanced segmentation based on behaviour, predictive data, and custom properties
- You want SMS marketing integrated with your email programme
- You are willing to invest time in learning a more powerful platform
- Email marketing ROI is a priority and you want to maximise revenue per subscriber
Shopify Email is a solid tool that serves new and small stores well. Klaviyo is the industry standard for ecommerce email marketing for good reason — its capabilities drive measurably more revenue. The question is not which is better, but which is right for where your business is today. For a wider comparison of email tools, see our roundup of the best Shopify email marketing apps.
If you are ready to take your email marketing to the next level with Klaviyo, or want an honest assessment of whether the investment makes sense for your store, get in touch. We set up and manage Klaviyo programmes that generate real, measurable revenue.