Klaviyo
Constant Contact
Campaign Monitor
1. User sentiment: Klaviyo receives higher ratings than Constant Contact
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Average Rating | 4.6/5 (1000+ reviews) | 4.1/5 (6000+ reviews) | 4.7/5 (1,000+ reviews) |
| Ease of Use Sentiment | Praised by ecommerce professionals | Beginner-friendly | Consistently praised as intuitive |
| Customer Support Satisfaction | Generally, well-regarded for accessible support but some online reviews have mentioned longer support response time | Well-regarded | Highly rated with personalized support |
| User Loyalty | Praised by ecommerce professionals | Strong among small businesses and nonprofits | Many users report 10+ years of usage |
| Best for → | Ecommerce brands and data-driven marketers | Absolute beginners prioritizing simplicity | Marketers prioritizing usability and design |
While Constant Contact receives praise by small businesses new to email marketing and Klaviyo is rated highly among ecommerce businesses, Campaign Monitor by Marigold consistently earns praise for its intuitive interface and exceptional 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: Klaviyo is known for ecommerce-specific design capabilities, and Constant Contact works for businesses with simpler designing and marketing needs.
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Email Editor | Drag-and-drop with ecommerce focus | Drag-and-drop email editor | Intuitive drag-and-drop email builder with auto-branded templates |
| Template Library | Mobile-responsive templates | Mobile-responsive templates organized by purpose | Mobile-optimized templates with auto-branded options |
| Customization Level | Customization with product blocks | BrandKit pulls assets directly from website | Auto-branded templates from website URL |
| Mobile Responsive | Brand kit and style settings | Automatic mobile adaptation | All templates are fully mobile optimized |
| Best for → | Brands wanting sophisticated design control | BrandKit pulls assets directly from website | Marketers wanting high-quality branded emails |
Klaviyo's design tools are built specifically for ecommerce, with product recommendation blocks, dynamic content based on purchase history, and sophisticated personalization. However, this complexity can overwhelm users who don't need advanced ecommerce features as noted in reviews online.
Constant Contact offers a decent template variety and AI-powered design assistance. The platform works well for small businesses.
Campaign Monitor offers the best of both worlds with professional design capabilities that remain accessible to marketers of all skill levels. The platform's auto-branded templates and visual design focus deliver stunning results without complexity.
"Role Models used Campaign Monitor's drag-and-drop email builder to maintain 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 offers more automation tools than Constant Contact
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Trigger Options | Triggers based on purchases, behavior, and site/app activity | Includes email actions, link clicks, form signups, and ecommerce triggers | Time-based, behavior-based, and event-based triggers |
| Workflow Complexity | Split testing and branching | Simple linear workflows | If/then branching |
| Prebuilt Journeys | 80+ prebuilt flows | Welcome series, event reminders, basic nurture | Prebuilt automated journeys for welcome, cart abandonment, anniversaries |
| Advanced Features | Email, SMS, push notifications | Auto-resend to non-openers (standard+) | Send time optimization and time zone sending |
| Best for → | Complex ecommerce automation needs | Simple automation needs | Marketers needing sophisticated automation workflows |
Klaviyo's automation capabilities are purpose-built for ecommerce success, with triggers based on browsing behavior, purchase history, and customer lifecycle stages, while Constant Contact offers a segment builder with criteria (tags, contact lists, membership, and activity) and dynamic content.
Campaign Monitor bridges the gap 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.
4. Deliverability & performance: Both platforms deliver strong performance.
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Delivery Rate | Consistently high delivery rates (exact number not mentioned on the website) | 97% deliverability rate | 99% delivery rate |
| Inbox Placement | Consistent inbox placement | Consistent inbox placement | Strong reputation with email providers |
| Deliverability Tools | Deliverability score and optimization | AI-powered spam detection for content | Inbox previews, spam testing, deliverability experts |
| Performance Monitoring | Real-time analytics | Basic to detailed reporting based on plan | Real-time delivery and engagement tracking |
| Best for → | High-volume ecommerce senders | Small to midsized businesses seeking reliable deliverability | Businesses prioritizing reliable delivery |
Constant Contact focuses on maintaining consistent performance, using AI-powered spam detection to protect sender reputation and Klaviyo offers deliverability scoring and real-time analytics.
Campaign Monitor, on the other hand, offers unique advantages with 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 wins with a higher number of segmentation and personalization tools.
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Segmentation Capabilities | RFM analysis and behavioral targeting | Segment builder with criteria (tags, contact lists, membership, and activity) | Custom fields and advanced segmentation using demographic and behavioral data |
| Dynamic Content | Product recommendations based on behavior | Dynamic content (premium only) | Dynamic content blocks using if/else logic and custom fields |
| Personalization Options | Deep personalization using Liquid tags (name, email) and behavioral data | Personalize using contact details and custom fields | Supports default tags (name, email) and up to 50 custom fields (birthday, country) |
| Predictive Analytics | CLV, churn risk, next purchase date | Limited | Send time optimization and time zone sending feature |
| Targeting Precision | Targeting with Liquid tags, behavior data, and predictive features | Targeting using tags, contact details, and activity | Strong targeting by engagement, behavior, demographics, and preferences |
| Best for → | Ecommerce personalization | Simple, straightforward targeting | Marketer-friendly personalization |
Klaviyo's segmentation capabilities are built around unified customer profiles that combine email, SMS, web, and purchase data. The platform's predictive analytics can identify high-value customers and optimal send times.
Constant Contact offers a segment builder with criteria (tags, contact lists, membership, and activity) and dynamic content.
Campaign Monitor bridges the gap 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 leads with ecommerce-focused integrations, while Constant Contact offers broader business tools
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Number of Integrations | 350+ integrations | 300+ integrations | 250+ integrations with focus on quality |
| Ecommerce Platforms | Deep Shopify, WooCommerce, BigCommerce | Shopify, WooCommerce, Stripe | Shopify, WooCommerce, MailSync |
| CRM Integrations | Salesforce and ecommerce-specific CRM integrations | Salesforce, Microsoft, LinkedIn | Integrations with various CRM platforms (Salesforce, Zoho, Zapier) |
| API Access | API with extensive documentation | API access with developer resources | Robust API for custom integrations |
| Best for → | Ecommerce-focused deep integrations | Social media-focused businesses | Marketers working with major platforms seeking quality |
Klaviyo offers ecommerce integrations that sync customer data, purchase history, and behavioral triggers. The platform's API allows for custom integrations tailored to specific business needs.
Constant Contact offers a broad range of integrations covering general business tools, social media, and basic ecommerce platforms.
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: Klaviyo`s AI focuses on ecommerce intelligence, while Constant Contact emphasizes content creation
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| AI Content Creation | AI-powered content generation | AI copy generator | Content creation with AI writer |
| Design Intelligence | Brand kit and style settings | BrandKit for automatic branding | Personalized copy suggestions (adapt your content for specific audiences), auto-branding |
| Optimization Tools | Performance benchmarking with AI | Spam detection and content filtering | A/B testing with insights & goals (increase open-rates, click-through rates, and visits to a URL) |
| Predictive Features | Predictive sending, CLV modeling | Limited | Send time recommendation & time zone sending feature |
| Best for → | AI-powered content generation | Marketers preferring simpler AI tools | Focused AI assistance for marketers |
Klaviyo focuses on ecommerce-specific predictions (customer lifetime value and churn risk, AI-powered content creation, and predictive sending). Constant Contact offers BrandKit that automatically applies brand elements and an AI copy generator.
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.
8. Pricing & scalability: Both platforms offer scalable pricing solutions.
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Free Plan | $0 (250 contacts) | 30-day free trial (100 email sends) | $0 (500 contacts) |
| Entry-Level Plan | Email: Starts at $45/month | Lite: Starts at $12/month | Lite: Starts at $12 USD/month |
| Mid-Tier Plan | Email + SMS: Starts at $60/month | Essentials: Starts at $35/month | Essentials: Starts at $29 USD/month |
| Premium Plan | Enterprise: Custom pricing | Premium: Starts at $80/month | Premier: Starts at $159 USD/month |
| Best for → | Growing ecommerce brands | Businesses with variable sending needs | Businesses wanting predictable pricing |
Klaviyo, Constant Contact, and Campaign Monitor offer flexible pricing based on your contact and month send needs.
9. Support & resources: Constant Contact wins with more support channels.
| Feature | Klaviyo | Constant Contact | Campaign Monitor |
|---|---|---|---|
| Support Channels | Email/chat support across plans (phone support not available) | Phone and live chat support on all plans | 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 | Responsive support; priority support access on premium plan | Fast response times consistently praised |
| Knowledge Resources | Guided onboarding via academy and agency partners | 1:1 onboarding | Extensive help center, training videos, and email academy (even on free plan) |
| Onboarding Support | Klaviyo academy, community forum, help center | Comprehensive help center with tutorials | Professional services team available |
| Best for → | Ecommerce-specific guidance | Users wanting hands-on guidance | Businesses valuing responsive support |
Klaviyo provides email and chat support (phone support not available), along with resources like the Klaviyo community, whereas Constant Contact provides phone and chat support across all plans, but priority support is accessible to premium users.
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."
