Klaviyo
Brevo
Campaign Monitor
1. User sentiment: Klaviyo leads with higher ratings and ecommerce-focused satisfaction
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Average Rating | 4.6/5 (1000+ reviews) | 4.5/5 (2,000+ reviews) | 4.7/5 (1000+ reviews) |
| Ease of Use Sentiment | Well-regarded for ecommerce workflows | User-friendly | Consistently praised as intuitive and user-friendly |
| Customer Support Satisfaction | Generally, well-regarded for accessible support but some online reviews have mentioned longer support response time | Well-regarded | Fast support time is consistently praised in online reviews |
| User Loyalty | Praised by ecommerce professionals | Popular among small businesses | Many users report 10+ years of usage |
| Best for → | Ecommerce brands and data-driven marketers | SMBs with simpler marketing needs | Marketers prioritizing usability and design |
Klaviyo maintains a slight edge in user sentiment, particularly among ecommerce merchants. Meanwhile, Brevo is popular among small businesses and marketers with simpler email marketing needs.
Campaign Monitor by Marigold strikes an ideal balance, with users consistently praising its intuitive interface and standout customer support.
"LOVE Campaign Monitor... it's very user friendly. The support is exceptional. It helps us reach a large audience in a personal way and a format which drives results above industry benchmarks.”
2. Design & user experience: Both platforms excel with different strengths
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Email Editor | Drag-and-drop with ecommerce focus | Drag-and-drop with mobile-responsive templates | Intuitive drag-and-drop email builder with visual design focus |
| Template Library | A wide range of e-commerce-specific templates | A wide range of email templates | A great variety of mobile-optimized templates with auto-branded options |
| Brand Consistency | Brand kit and style settings | Doesn’t offer auto-branding; users can save brand assets in the brand library. | Auto-branded templates from website URL |
| Customization Level | Deep ecommerce customization | HTML editor | Balance of simplicity and customization with HTML tools and auto-branding |
| Best for → | Ecommerce brands needing product-focused design | Beginners needing decent designing capability | Marketers who value high-quality, professional design |
Klaviyo's design tools are specifically built for ecommerce, featuring product recommendation blocks and shoppable content, while Brevo offers a wider range of templates and also supports HTML customization. Brevo lacks auto-branding features but users can save their brand assets in the library so new email designs automatically inherit your brand settings
Campaign Monitor strikes an ideal balance between professional design quality and ease of use. Users consistently describe Campaign Monitor templates as "THE BEST looking" and appreciate the auto-branded feature that pulls branding directly from website URLs, eliminating manual design work.
"Role Models used Campaign Monitor's drag-and-drop email builder to maintain a consistent brand presence across communications, helping them achieve a 23.5% open rate and 12.6% click-through rate, driving a 24% increase in bookings."
3. Automation & journeys: Klaviyo dominates with ecommerce-specific workflows
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Trigger Options | Triggers based on purchases, behavior, and site/app activity | Time-based, behavior-based | Time-based, behavior-based, and event-based triggers |
| Workflow Complexity | Mult-channel journeys with split testing and branching | Mult-channel journeys If/then branching | Focused on email-centric journeys with if/then branching |
| Prebuilt Journeys | 80+ prebuilt flows | Welcome series, abandoned cart, product announcements, birthdays, anniversaries | Welcome series, abandoned cart, anniversaries, events |
| Advanced Features | Advanced conditional splits | Send-time optimization, time zone scheduling | Send time optimization and time zone sending |
| Best for → | Ecommerce brands needing lifecycle marketing | Businesses with simpler automation needs | Marketers needing sophisticated automation workflows |
Klaviyo's automation capabilities are purpose-built for ecommerce success, with sophisticated triggers based on browsing behavior, purchase history, and customer lifecycle stages. Brevo offers prebuilt journeys (welcome series, abandoned cart, product announcements, birthdays, anniversaries), time-based, behavior-based, and event-based triggers, and send time optimization features.
Campaign Monitor also offers advanced yet straightforward automation capabilities. With simple branching and prebuilt journeys (welcome series, abandoned cart, anniversaries), the platform makes advanced automation easier to implement without sacrificing capability.
And while Klaviyo and Brevo offer multi-channel support, Campaign Monitor has perfected email for over two decades, focusing on delivering maximum success in this powerhouse channel.
"Wonderful Union saved 40 hours weekly using Campaign Monitor's automated email campaigns and saw a 13% increase in CTR on automated sequences, generating a 700% ROI from email marketing campaigns."
4. Deliverability & performance: Both platforms maintain excellent standards
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Delivery Rate | Consistently high delivery rates (exact number not mentioned on the website) | High delivery rates (the exact number isn’t mentioned on the site) | 99% delivery rate with strong reputation |
| Inbox Placement | Consistent inbox placement | Consistent inbox placement | Strong reputation with email providers |
| Performance Monitoring | Deep ecommerce analytics included | Real-time dashboards | Real-time performance dashboards with bot click filtering |
| Deliverability Tools | Deliverability score and optimization | Spam trap detection, automated blocklisting of hard bounces | Inbox previews, spam testing, and deliverability experts |
| Best for → | Ecommerce performance optimization | Teams looking for reliable delivery | Businesses prioritizing reliable delivery with expert support |
Both platforms maintain excellent deliverability rates. Klaviyo focuses on ecommerce-specific metrics like revenue attribution, whereas supports strong deliverability with built-in spam trap detection, automatic blocklisting of hard bounces, and real-time segmentation tools to maintain sender reputation.
Campaign Monitor offers access to deliverability experts, real-time tracking, inbox previews, spam testing, and non-human click filtering that removes bot (non-human) activity from reports. This combination of reliable infrastructure and expert support makes it ideal for businesses that want excellent deliverability without technical complexity.
"We use Campaign Monitor because it is quite easy to use. It is also very reasonably priced. We haven't had any problems with deliverability or in creating the emails."
5. Segmentation & personalization: Klaviyo leads with predictive capabilities
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Segmentation Capabilities | RFM analysis and behavioral targeting | Dynamic segments using behavioral filters, conditions, and 50+ custom fields | Custom fields and advanced segmentation using demographic and behavioral data |
| Dynamic Content | Product recommendations based on behavior | Dynamic content blocks using if/else logic | Dynamic content blocks using if/else logic and custom fields |
| Personalization Options | Deep personalization using Liquid tags (name, email) and behavioral data | Personalization using contact attributes (e.g., name, birthday, location) | Supports default tags (name, email) and up to 50 custom fields (birthday, country) |
| Predictive Analytics | CLV, churn risk, next purchase date | Send time optimization and time zone sending | Send time optimization and time zone sending feature |
| Targeting Precision | RFM analysis and behavioral targeting | Targeting via segments, filters, and contact behavior | Strong targeting by engagement, behavior, demographics, and preferences |
| Best for → | Ecommerce brands maximizing customer lifetime value | Businesses wanting AI-assisted personalization | Marketer-friendly personalization without complexity |
Klaviyo offers real-time tracking of browsing behavior, purchase history, and customer lifecycle stages. The platform creates unified customer profiles that eliminate data silos, whereas Brevo supports dynamic segmentation using saved filters (e.g., engagement activity, contact ownership, email opens), and personalization via contact attributes (e.g.,name, birthday). Campaign Monitor also offers these.
Campaign Monitor provides the perfect sweet spot with segmentation and personalization tools delivered through a structured and user-friendly platform built for marketers. The platform excels with powerful segmentation tools, including custom fields and behavioral data (location, purchase history, etc), dynamic content, and a fully customizable preference center (frequency, topics). It supports up to 50 custom fields and personalization tags (name, birthday, country).
The Australian Red Cross used Campaign Monitor's preference center and smart segmentation to achieve a 68% increase in open rates, a 201% increase in click-through rates, and a 75% increase in conversions from a single personalized email campaign.
6. Integration ecosystem: Klaviyo edges ahead with ecommerce focus
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Number of Integrations | 350+ integrations | 250+ integrations | 250+ integrations with focus on quality |
| E-commerce Platforms | Deep Shopify, WooCommerce, BigCommerce | Shopify, WooCommerce, BigCommerce | Shopify, WooCommerce, MailSync |
| CRM Integrations | Salesforce and ecommerce-specific CRM integrations | Salesforce, HubSpot, Pipedrive | Integrations with various CRM platforms (Salesforce, Zoho, Zapier) |
| API Access | API with extensive documentation | Open API with documentation | Robust API for custom integrations |
| Best for → | Ecommerce-focused deep integrations | Teams needing access to major tools | Marketers working with major platforms seeking quality |
Brevo’s integration ecosystem covers marketing tools that SMBs commonly use, spread around different categories, while Klaviyo's integrations are specifically designed for ecommerce success.
Campaign Monitor delivers a focused, marketer-friendly experience through its integration ecosystem—ideal for teams that want dependable, easy-to-deploy email marketing tools.
Campaign Monitor offers integrations with strong native integrations to platforms like Salesforce, Shopify, WooCommerce, HubSpot, etc. It also provides flexible API access (RESTful API v3.3) to support custom workflows and third-party apps.
Girls Who Code leveraged Campaign Monitor's Salesforce integration with custom fields for deeper list precision, helping them achieve a 40% email open rate, 22% click-to-open rate, and a 150% increase in student applications.
7. AI-powered features: Brevo takes the lead with comprehensive AI suite
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| AI Content Creation | AI-powered content generation | AI Marketing Agent: generates or refines content using AI-powered prompts | Content creation with AI writer |
| Design Intelligence | Brand kit and style settings | AI Conversations Agent: refines tone and expands notes into responses | Personalized copy suggestions (adapt your content for specific audiences), auto-branding |
| Optimization Tools | Performance benchmarking with AI | Send time recommendation and time zone sending feature | A/B testing with insights & goals (increase open-rates, click-through rates, and visits to a URL) |
| Predictive Features | Predictive sending, CLV modeling | Send time recommendation and product recommendation based on real-time insights | Send time recommendation & time zone sending feature |
| Best for → | AI-powered content generation | Marketers wanting comprehensive AI assistance | Focused AI assistance for marketers |
Klaviyo focuses on ecommerce-specific predictions (customer lifetime value and churn risk, AI-powered content creation, and predictive sending); Brevo offers AI-powered prompts for generating and refining content, tone adjustment tools, send time recommendations, and real-time product suggestions through AI agents.
Campaign Monitor offers focused AI tools for marketers—like the AI writer to create content and refine copy, send time optimization (sending emails when a subscriber is most likely to engage), and a time zone sending feature that adjusts delivery times to match each subscriber’s local time.
While Brevo offers more AI tools, Campaign Monitor's approach provides practical assistance that integrates seamlessly into the workflow without requiring extensive setup or configuration.
8. Pricing & scalability: Both platforms offer flexible pricing
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Free Plan | $0 (250 contacts) | $0/month (300 emails/day) | $0 (500 contacts) |
| Entry-Level Plan | Email: Starts at $45/month | Starter: Starts at $9/month | Lite: Starts at $12 USD/month |
| Mid-Tier Plan | Email + SMS: Starts at $60/month | Business: Starts at $18/month | Essentials: Starts at $29 USD/month |
| Premium | Enterprise: Custom pricing | Enterprise: Custom pricing | Premier: Starts at $159 USD/month |
| Best for → | Growing ecommerce brands | Small businesses | Businesses wanting predictable pricing |
Klaviyo, Brevo, and Campaign Monitor offer flexible pricing based on your contact and month send needs.
9. Support & resources: Both platforms offer comprehensive assistance
| Feature | Klaviyo | Brevo | Campaign Monitor |
|---|---|---|---|
| Support Channels | Email/chat support across plans (phone support not available) | Email support on the free and entry-level plans and priority phone support on business and premium plan | 24/5 global support via multiple channels (email support on all tiers, phone support on Premium) |
| Response Quality | Generally well-regarded for helpful support, but some online reviews suggest longer response time | Well-regarded | Fast response times consistently praised |
| Knowledge Resources | Klaviyo academy, community forum, help center | Knowledge base, webinars, documentation | Extensive help center, training videos, and email academy (even on free plan) |
| Onboarding Support | Guided onboarding via academy and agency partners | Tailored onboarding on Enterprise plan | Professional services team available |
| Best for → | Ecommerce-specific guidance | Businesses wanting reliable support | Businesses valuing responsive support |
Klaviyo provides email and chat support (phone support not available), along with resources like the Klaviyo community. Brevo offers email support on the free and entry-level plans and priority phone support on business and premium plans along with resources like a knowledge base and webinars.
Campaign Monitor, on the other hand, offers 24/5 global support via email and phone (premium plan), access to deliverability experts regardless of plan tier, onboarding assistance, and extensive resources like training videos and an email academy.
"Been working with Campaign Monitor for 10+ years… Not only does the platform make sending highly-customized emails easy and fun, their support team is phenomenal… Highly recommend."
