Klaviyo vs Mailchimp vs Brevo: Best Email Marketing Platform for Shopify in 2026
In the year 2026, email marketing continues to be one of the most effective methods through which Shopify stores enhance customer engagement as well as maximize sales and lifetime value. However, given the presence of a number of platforms within the market today, the choice of the one you use may prove to be the deciding factor between the success and failure of your marketing campaigns. Some of the most commonly used platforms include Klaviyo, Mailchimp, and Brevo.
Comparing the Three Solutions to Find the Best Fit for Your Shopify Store in 2026
1. Integration with Shopify: Who Syncs Best?
For Shopify merchants, a smooth integration with your store is a very important consideration.
Klaviyo has always been recognized for being one of the best solutions for integration with Shopify. The pre-built integration with Shopify allows it to ingest behavior data such as view, purchase, and browse data, leveraging that data for highly targeted campaigns and automation.
In contrast, the integration of Mailchimp with Shopify is quite rudimentary and has always needed the aid of third-party applications such as ShopSync to synchronize data from the store in the past. Although there has been an improvement in the matter, it still lags behind the e-commerce integration of Klaviyo.
Brevo, previously known as Sendinblue, also connects with Shopify and provides good data syncing functionality for emails, automations, and contact management. It doesn't offer as much data behavior-related triggers as Klaviyeo does, however, and is perfectly fine for typical e-commerce purposes.
The Bottom Line: If you want the best e-commerce Shopify data and automation solutions available, Klaviyo is still at the top of the game, especially where your Shopify store’s primary goal is maximum email revenue.
2. Pricing - What You Pay in 2026
Price becomes a decisive point, especially for those growing stores on Shopify who are tracking their costs and ROIs.
Klaviyo
- By the number of active profiles - the more profiles you have, the higher the cost.
- Features are very powerful but tend to be expensive.
Mailchimp
- Pricing becomes more affordable when dealing with smaller to medium-sized lists.
- Offers free plans as well as plans depending on the number of contacts with varying costs.
Brevo
- The pricing structure is per email send, not per contact, which could be a massive benefit if you're keeping large lists of subscribers that you're only sending emails to on a moderate scale.
- Free version supports up to 300 emails per day (around 9,000 emails a month) with unlimited contacts.
This means Brevo is often significantly cheaper for stores with big subscriber lists but modest campaign frequency. For stores sending frequent campaigns to large lists, Brevo’s pricing model helps control costs without missing outreach. Mailchimp sits in the middle - affordable for many but can get costly as lists grow. Mailchimp sits in the middle - affordable for many but can get costly as lists grow. Klaviyo tends to be highest, justified only if its advanced features drive substantial revenue.
3. Automation & Segmentation - Performance Matters
Automation and segmentation may be the strongest differentiation factors between platforms.
Klaviyo excels at advanced automation:
- Provides real-time behavior triggers that power flows such as abandoned cart, personalized upsell, and lifecycle campaigns.
- The predictive models support the personalization of emails based on purchase probability, customer lifetime value, and churn risk.
Mailchimp has basic automations using templates and triggers such as welcome messages and simple abandoned cart triggers. Mailchimp is simpler to implement when learning about automation, but not as detailed or as focused on e-commerce as Klaviyo.
Customers can use the automation features and behavior sequential functionality provided by Brevo to manage their marketing operations – even though it lacks data-driven functionality and e-commerce predictability, which are available in the tool Klaviyo.
Targeting your audience through segmented campaigns is facilitated in all three. While the segmentation in Klaviyo feels much more flexible and dynamic when targeting Shopify behaviors, the segmentation rules in Brevo and Mailchimp are very good and perfectly suited for marketing lists.
4. Ease of Use and Support
Not every Shopify merchant has an in-house marketing team.
- Mailchimp email marketing is thought to be the most user-friendly, with an intuitive drag-and-drop builder and support for mobile apps, offering broad template options that are beginner-friendly.
- Klaviyo email marketing has a much deeper set of features and, consequently, a more difficult learning curve, but it has robust documentation and community support.
- Brevo email marketing strikes a balance: it’s approachable for beginners while offering more advanced automation options as your needs grow. It also adds more all-in-one communication tools such as SMS and WhatsApp in one place.
5. Which One Is Best for Your Shopify Store?
Summary in a nutshell to lead your decision in 2026:
1. Best for E-Commerce Growth & Deep Analytics: Klaviyo
- Ideal for Shopify stores focused on maximizing revenue.
- There are strong automation and predictive tools that will justify higher pricing if used to their full potential.
2. Best for Small to Mid-Sized Businesses: Mailchimp
- Best for beginners and small teams who want simplicity and ease.
- Inexpensive and easy to get started with; may outgrow it as your needs get more advanced.
3. Best Value for List Size & Cost Control: Brevo
- Best for stores with big lists and need affordable sends.
- Competitive automation and multi-channel messaging without steep pricing.
Conclusion
In 2026, there’s no one-size-fits-all answer - it depends on your goals.
- Klaviyo email marketing remains the go-to if your Shopify store wants data-driven automation and deep personalized flows.
- The simple, no-frills tool for those starting out is still pretty strong on Mailchimp.
- But if budget and flexible pricing matter most, especially with large lists and multichannel messaging, Brevo is a compelling choice.
Each one has something unique to offer, and the best overall aligns with your store size, marketing sophistication, and growth strategy.

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