Who hasn’t experienced having an email list, a clear idea of the message they want to send… but no platform that truly makes it easy for you? We have, and more times than we’d like to admit. It was precisely at that point that we discovered Klaviyo, an email marketing (and automation) tool that promises to help us connect better with our audience.
With Klaviyo, we can not only send email campaigns, but also design automations based on customer behavior, intelligently segment audiences, and even integrate data from our online store. In other words, it’s not just a simple platform to send emails, but rather a control center for communication with our customers, with real-time data and a level of personalization capable of surprising even the most experienced in the field.
In this analysis, we will thoroughly explore its key features, advantages and disadvantages, who it makes the most sense for, how it compares to other popular options and, of course, our real reasons for adopting it (or not). So if you’re tired of platforms that fall short of what you need, stay here, because Klaviyo might be just what you’re looking for.
What is Klaviyo?
Klaviyo is an email and SMS marketing platform designed for e-commerce businesses seeking advanced automation and personalization. Founded in 2012 by Andrew Bialecki and Ed Hallen, the company is headquartered in Boston, Massachusetts (United States). Since its creation, Klaviyo has evolved into a comprehensive solution that helps brands build lasting relationships with their customers, making use of real-time data and automation tools.
Over the years, Klaviyo has expanded its capabilities, including the launch of its SMS platform in 2021 and the introduction in 2023 of Klaviyo Data Platform, its own customer data platform (CDP). These additions have allowed businesses to unify data, marketing, service, and analytics on a single platform. Additionally, in 2025, Klaviyo launched its B2C CRM, further consolidating its position as an essential tool for brands looking to personalize and optimize their communication with customers.
However, it is important to highlight that, like any technology platform, Klaviyo has experienced certain occasional service interruptions. For example, on April 23, 2025, there was a 49-minute outage in its API, followed by a warning period of 2 hours and 19 minutes due to a series of issues in event processing.
Still, these isolated failures do not represent Klaviyo’s usual status, which tends to have high service availability. According to its status page, the platform recorded an uptime of 100% in the 90 days prior to the writing of this article for its main application, and 99.92% for its API.
Why use Klaviyo for your email campaigns?
Klaviyo has left us with very good impressions, which is why we have given it a final score of 9 out of 10. Why such a high rating? Because it is a complete, powerful tool and, above all, designed to make the most out of online business marketing. Although it does have a learning curve for users with less technical knowledge and is not the cheapest, if you are looking for results and take it seriously, the platform is worth it.
What we liked the most by far is how well it integrates with platforms like Shopify, and how easy it is to create personalized campaigns thanks to its automations and very detailed segmentation. Additionally, being able to manage email and SMS from the same place saves time and gives a lot of control. And all this comes with reports and analytics that help you understand at all times what is working.
Therefore, if you have an e-commerce business and want to leave behind mass emails to start doing smarter marketing tailored to your customers, Klaviyo is a very solid option; it is not the simplest nor the cheapest tool, but it is one of the most complete. For those who want to scale and do things right, it is a choice we recommend without hesitation.
8 features and functions where Klaviyo stands out
Over time, Klaviyo has established itself as a leading tool in the digital marketing field, especially among e-commerce businesses seeking effective and personalized communication with their customers. Below, we detail some of the key features that make this platform an option to consider:
1. Email and SMS integration
Klaviyo allows combining email campaigns and SMS messages on a single platform, enabling consistent and synchronized communication with customers. This integration enhances the user experience by delivering consistent messages across different channels, which can increase conversion rates and strengthen the relationship with the brand.
2. Advanced segmentation
The platform offers detailed segmentation tools that allow grouping customers according to various criteria, such as demographics, purchase history, website activity, email interaction, and customer lifetime value. This enables the creation of highly personalized and relevant campaigns for each audience segment.
3. Workflow automation
Klaviyo provides predefined and customizable automated workflows, including welcome series, abandoned cart reminders, post-purchase follow-ups, and reactivation campaigns. All these automations can be triggered based on specific events or dates, optimizing the time and resources of the marketing team.
4. Detailed analytics and reporting
The platform offers comprehensive analytics to monitor campaign performance, including open rates, clicks, conversions, generated revenue, and customer lifetime value. Thanks to these reports, companies can make informed decisions and adjust marketing strategies based on the results obtained.
5. More than 350 available integrations
Klaviyo integrates with a wide variety of tools and platforms, including Shopify and PrestaShop, facilitating data synchronization and process automation. Additionally, it offers a robust API that allows developers to create custom integrations according to the specific needs of the business.
6. Artificial intelligence (AI) tools
The platform incorporates artificial intelligence functions that help predict customer behaviors, such as the likelihood of purchase or estimated lifetime value, allowing even greater campaign personalization and improved marketing efficiency.
7. Customizable email templates
Klaviyo offers a library of more than 160 email templates that can be easily customized through a drag-and-drop editor or by using HTML code, enabling the creation of professional campaigns without advanced design knowledge.
8. Transactional emails
The platform allows configuring automated transactional emails, such as order confirmations, shipping notifications, or password resets. Messages that are essential to keep customers informed and enhance their experience with the brand.
Pros of Klaviyo ✅
- Intuitive interface and very powerful segmentation
- Optimized sending, with a high delivery rate to recipients
- Effective automations that save a lot of time
- Detailed reports with valuable metrics and insights
- Good integration with e-commerce platforms like Shopify
- Easy-to-use templates and forms
Cons of Klaviyo ❌
- Somewhat steep learning curve at the beginning
- Occasional failures in emails and analytics
- High price compared to other options
- Technical support somewhat inconsistent at key moments
Who can benefit the most from Klaviyo?
- Rapidly growing online stores: Ideal for businesses that need to scale their automated communication with customers and handle large volumes of data.
- Direct-to-consumer (DTC) brands: Perfect for those who want full control over the customer relationship, without intermediaries.
- Subscription companies: Allows automating renewals, reminders, and personalized recommendations based on purchase cycles.
- Industries such as fashion, beauty, or food: These sectors, with high purchase frequency and strong digital presence, gain great benefits from its advanced features.
- Digital marketing agencies specialized in e-commerce: Can manage multiple client accounts and leverage detailed analytics to optimize campaigns.
- Developers seeking customized integrations: Its advanced API allows adapting the platform to specific technical needs.
Who might need another tool?
- Small businesses with small mailing lists: They may not need so many features or be able to justify the cost.
- Freelancers or entrepreneurs with limited resources: Other more affordable and simpler solutions might cover their needs without so much complexity.
- B2B businesses with long sales cycles: They may prefer a traditional CRM more focused on complex sales than on automated marketing campaigns.
- Teams without digital marketing experience: The learning process can be overwhelming if there is no time or technical knowledge.
Reasons to Choose Klaviyo for Your Business
- Advanced Features for Personalized Marketing: Offers segmentation, automations, and workflows that allow creating highly specific and effective campaigns.
- Direct Integration with Shopify and PrestaShop: Facilitates automatic synchronization of customer and order data to launch campaigns based on purchasing behavior.
- Great Scalability: Growing brands find in Klaviyo a robust solution that supports their evolution without falling short.
- Improves Customer Lifetime Value: Enables automating messages according to habits and predictions, increasing retention and spending per customer.
- Migration from Basic Tools: Many users make the jump from platforms like Mailchimp seeking greater personalization and control.
Reasons why users abandon Klaviyo
- Steep learning curve: Some users without technical experience leave the platform due to the complexity of the interface and initial setup.
- High cost: Prices can be hard to justify for businesses with tight budgets or small databases.
- Too focused on e-commerce: Companies with a physical presence or B2B strategies may not fully leverage its potential.
- Need for simpler solutions: Some prefer more intuitive tools with fewer features but easier to master.
- Lack of internal technical staff: Without someone managing the tool in depth, it can be difficult to get the most out of it.
Klaviyo Plans, Prices, and Discounts
Klaviyo offers a fully customizable pricing structure based on the number of active profiles and SMS/MMS credits used. This flexibility allows businesses to scale their marketing campaigns according to their needs.
Klaviyo has three main plans:
- Free Plan: Ideal for small businesses just starting out. Allows up to 250 active profiles, 500 email sends per month, and 150 SMS/MMS credits monthly. Includes email support during the first 60 days and access to built-in reporting dashboards.
- Email Plan: Starting at €20 per month for 251-500 active profiles. Offers unlimited email sends and 150 SMS/MMS credits monthly. Includes all features of the free plan, plus email and chat support.
- Email + SMS Plan: From €35 per month for 251-500 active profiles. Includes 5,000 email sends and 1,250 SMS/MMS credits monthly. This plan is suitable for companies looking to combine email and SMS campaigns on a single platform.
It is important to note that prices increase progressively as the number of active profiles grows. For example, for 10,000 contacts, the cost may be approximately €150 per month.
Regarding offers or reduced prices, Klaviyo provides a 15% discount on annual billing, which can be a cost-effective option for businesses planning to use the platform long-term. Additionally, there are 25% discounts on annual subscriptions for nonprofit organizations, educational institutions, and government and medical sector entities.
Although Klaviyo does not offer a refund guarantee, its free plan allows businesses to test basic features before committing to a paid plan.
Implementation, Training, and Documentation
Implementing Klaviyo in a company is usually a straightforward process, especially if using an e-commerce platform like Shopify or PrestaShop. The tool offers a setup wizard that guides step-by-step through connecting the store, importing contacts, and creating the first email flows.
For more advanced configurations, such as custom integrations or complex automations, more technical knowledge may be required. In these cases, Klaviyo provides detailed documentation and resources for developers that facilitate the process.
For those seeking structured training, Klaviyo Academy offers a wide variety of educational resources. From quick 15-minute guides to full courses and certifications, users can learn at their own pace. Additionally, it offers live sessions where Klaviyo experts answer questions in real time, which is very useful for resolving specific doubts during implementation.
The time needed to master Klaviyo varies depending on prior experience and business complexity. For basic setups, such as creating simple campaigns and segments, a few days are enough. However, to fully take advantage of advanced features, such as complex automations or API integrations, a greater time investment may be required.
Personnel and management
Generally, Klaviyo is managed by the company’s marketing team, specifically by profiles specialized in email marketing or automation. Although some help from the technical department may be needed during the initial setup or to resolve occasional issues, the day-to-day tasks (such as creating campaigns, segmenting audiences, and analyzing results) are handled by the marketing specialists themselves.
The number of people needed to operate Klaviyo largely depends on the size and ambitions of the company. In small businesses, one person can take care of everything, while in larger companies, it is common to have a team or at least a figure dedicated exclusively to Klaviyo. The more complex the campaigns, the more hands are needed to keep everything running.
Decision-making process
Companies usually take between one and three weeks to make a decision about whether to adopt Klaviyo, depending on the size of the business and the urgency of their marketing strategy. During this time, product testing is carried out, available integrations are evaluated, and key features are compared with other platforms on the market, especially if the business was already using competitor solutions such as Mailchimp or ActiveCampaign.
The evaluation process is usually led by the marketing team, especially roles such as digital marketing or CRM managers. In larger companies, it may also involve the IT department or data analysts to validate integration and scalability. The final decision usually rests with marketing management or the executive team, taking into account business strategy, budget, and estimated return.
Usability and Interface of Klaviyo
Klaviyo offers a clean and intuitive interface with which you can create campaigns with complete ease thanks to its drag-and-drop functionality, simplifying email creation to the point that even users without technical experience can get started quickly. Although the platform has advanced features, the learning curve can be “offset” thanks to the contextual help and available documentation.
And indeed, despite having a wide set of functionalities, Klaviyo’s interface is very easy to use and allows users to adapt effortlessly. The platform also offers a mobile app for iOS and Android, enabling campaign monitoring and management from anywhere, providing flexibility to marketers who need to stay connected at all times.
Security: Is Klaviyo a secure platform?
Klaviyo complies with the most relevant security and privacy standards in the industry. Although it does not explicitly mention SOC 2 or ISO 27001 certification, it implements security measures aligned with industry best practices. The platform is GDPR compliant, allowing users to meet data privacy regulations in Europe.
Additionally, Klaviyo offers advanced authentication options, such as two-factor authentication (2FA), which strengthens user account protection. For clients who need to comply with specific regulations, Klaviyo can offer Business Associate Agreements (BAA), though it is recommended to contact the platform directly to confirm current details regarding HIPAA compliance.
Reporting and Analytics Features
Klaviyo stands out for its powerful and versatile analysis tools, which provide valuable insights to optimize marketing strategies. Users can track key metrics such as open rates, clicks, conversions, revenue generated, and customer lifetime value (CLTV), making it easier to make data-driven decisions.
Additionally, Klaviyo offers customizable reports that include web activity analysis, product performance, and campaign results. The platform also features advanced capabilities like cohort analysis and A/B testing, allowing marketers to refine strategies and better understand customer behavior to improve outcomes.
Customer Service
Klaviyo offers support through email, live chat, and a comprehensive help center with articles and tutorials. Response times may vary depending on the complexity of the issue and the time of day, although in general, the support is quite responsive. Currently, phone support is not offered, but there is 24/7 email support for critical issues.
Users usually appreciate the quality of the support documentation and the usefulness of Klaviyo’s community forum. Although waiting times can be an inconvenience in some cases, the community and available resources usually help resolve most problems quickly.
Competition: What is the best alternative to Klaviyo?
Klaviyo faces strong competition in the field of email marketing and automation. Below, we analyze the four most prominent alternatives, evaluating their features and the reasons why some companies might prefer them over Klaviyo:
Klaviyo vs Mailchimp
Mailchimp is one of the most recognized platforms in email marketing, especially among small businesses and entrepreneurs. It offers an intuitive interface, a wide variety of templates, and a strong integration with platforms like Shopify and WooCommerce.
Its free plan allows up to 500 contacts, making it an attractive option for those starting in digital marketing. However, its automation and segmentation capabilities are more limited compared to Klaviyo, which can be a deciding factor for companies seeking more personalized and complex campaigns.
Klaviyo vs ActiveCampaign
ActiveCampaign stands out for its advanced automation capabilities and integrated CRM. It allows creating complex workflows, precisely segmenting audiences, and managing customer relationships from a single platform.
Its plans start at €29/month for 500 contacts. For businesses looking for an all-in-one solution with powerful automation and sales tools, ActiveCampaign can be a more comprehensive option than Klaviyo, especially if the focus is not exclusively on e-commerce.
Klaviyo vs Omnisend
Omnisend presents itself as a robust alternative, especially for e-commerce businesses looking for an omnichannel solution. In addition to email, it integrates SMS, push notifications, and social media messaging, allowing for consistent communication across multiple channels.
Its focus on ease of use and affordable pricing (from €16/month) makes it ideal for small and medium-sized businesses. Although it does not offer the depth of segmentation of Klaviyo, its simplicity and multichannel focus may be more suitable for those who prioritize quick and effective implementation.
Klaviyo vs Brevo (formerly Sendinblue)
Brevo, formerly known as Sendinblue, offers a versatile platform with email marketing, SMS, automation, and CRM features. Its free plan allows sending up to 300 emails daily, and paid plans start at €25/month.
Although its interface may require an initial learning curve, it is an economical option for small businesses looking for an all-in-one solution. However, for highly customized and segmented campaigns, Klaviyo might offer more specialized tools.
A highly versatile email marketing platform full of possibilities
We conclude our review pointing out that Klaviyo has seemed to us a very complete tool, designed especially for those who have an online business and want to take their marketing to the next level. If you are looking for something that allows you to automate campaigns, segment precisely, and make the most of your customer data, Klaviyo can help you achieve just that. It’s not the cheapest option, let’s be honest, but its potential justifies the investment if you know how to make the most of it.
That said, it must be said: not everything is easy. Although the interface is quite clear, some advanced content features may take a little time to understand. And while the documentation is extensive and useful, support sometimes doesn’t respond as quickly as we would like. Still, with a bit of patience and willingness to learn, it’s a platform worth exploring.
We definitely recommend Klaviyo, especially if you have an online store and want to create more personalized and effective email and SMS campaigns. The platform will be useful if you have some prior experience or a team in charge of digital marketing, and in the right hands, it can make a difference in your results.
On the other hand, if your business is just starting out, you have a tight budget, or you’re looking for something simpler and more straightforward, you might want to consider other cheaper and simpler options that cover the basics without much hassle. Basically, it all depends on what you need now and where you want to grow.