Klaviyo vs Constant Contact: Full Comparison 2026
Klaviyo is an e-commerce-focused platform optimized for data-driven personalization and advanced automation, while Constant Contact is a user-friendly, general-purpose email marketing tool designed for small businesses. Klaviyo costs more but offers superior segmentation and SMS capabilities, whereas Constant Contact provides better ease-of-use at a lower entry price.
Klaviyo
E-commerce focused email and SMS marketing platform designed for growth-stage businesses with visual automation builder.
E-commerce brands, high-growth companies, and marketers needing advanced personalization and automation
Constant Contact
User-friendly email marketing platform emphasizing customer support and simple campaign management for small businesses.
Small businesses, local service providers, nonprofits, and users prioritizing simplicity over advanced features
Quick Answer
AI SummaryKlaviyo is an e-commerce-focused platform optimized for data-driven personalization and advanced automation, while Constant Contact is a user-friendly, general-purpose email marketing tool designed for small businesses. Klaviyo costs more but offers superior segmentation and SMS capabilities, whereas Constant Contact provides better ease-of-use at a lower entry price.
Our Verdict
AI-assistedChoose Klaviyo if you're an e-commerce business prioritizing customer data, personalization, and multi-channel marketing—the higher investment pays off through advanced automation and SMS capabilities. Choose Constant Contact if you're a small business seeking simplicity, affordability, and straightforward email marketing without the complexity of enterprise-level data management.
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Choose Klaviyo if
E-commerce brands, high-growth companies, and marketers needing advanced personalization and automation
Choose Constant Contact if
Best pickSmall businesses, local service providers, nonprofits, and users prioritizing simplicity over advanced features
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Key Differences at a Glance
- Primary Use Case:✓ Klaviyo wins(E-commerce personalization and advanced automation vs General small business email marketing)
- Starting Price:✓ Constant Contact wins($12/month (up to 500 contacts) vs $25/month (based on order volume))
- Mid-Market Monthly Cost:✓ Constant Contact wins($80/month (comparable tier) vs $720-$825+ (50,000+ profiles))
Key Facts & Figures
72 numeric metrics compared
| Metric | Klaviyo | Constant Contact | Ratio |
|---|---|---|---|
| Starting Price (Entry Tier)(USD/month) | $20/month | — | — |
| Cost at 5,000 Contacts/Profiles(USD/month) | $100/month | — | — |
| Cost at 50,000 Contacts/Profiles(USD/month) | $720/month | — | — |
| Monthly Email Send Limit (Entry Plan)(emails/month) | 5,000+ | — | — |
| Average eCommerce Email Revenue Per Send(USD) | $72 | — | — |
| Starting Price (Email Only)(USD/month) | $20/month (500 contacts) | — | — |
| eCommerce Email Automation ROI(%) | 4,200% ROI (industry average) | — | — |
| Segmentation Filter Count(filters) | 45+ filters | — | — |
| Client Revenue Tracked (Lifetime)(million USD) | $50M+ | — | — |
| Channels Supported(count) | 3 (Email, SMS, WhatsApp) | — | — |
| Platform Rating(out of 5) | 4.7/5 | — | — |
| Typical Onboarding Time(weeks) | 7-14 | — | — |
| eCommerce Revenue Attribution(USD per email) | $72 per email sent | — | — |
| eCommerce Platform ROI(%) | Industry average 4,200% | — | — |
| Starting Monthly Price(USD) | $20+ (usage-based) | — | — |
| Email Deliverability Rate(%) | 99.2% | — | — |
| API Rate Limit(requests per second) | 10,000 | — | — |
| Entry-Level Monthly Price(USD) | $25 | $12 | |
| Price at 50,000 Contacts(USD) | $720 | $80 | |
| SMS Cost Per Message(USD) | $0.01-$0.015 | Not offered | — |
| Ease of Use Score(/10) | 6.5 | 9 | |
| Starting Price(USD/month) | $20 | — | — |
| Email Integrations Count(integrations) | 400+ | — | — |
| Behavioral Automation Triggers(triggers) | 200+ | — | — |
| API Rate Limits(requests/second) | 60 | — | — |
| SMS Deliverability Rate(percent) | 98% | — | — |
| Starting Monthly Cost(USD) | $20-45 | — | — |
| Free Email Monthly Limit(emails) | None | — | — |
| E-commerce Templates Available(count) | 200+ Shopify-optimized | — | — |
| API Rate Limit(requests/second) | 500 req/sec | Unlimited (on request) | — |
| Open Rate Improvement (avg)(percent increase) | 10-15% with predictive send time | — | — |
| Deliverability Rating(percent) | 99.1% | — | — |
| Base Monthly Cost(USD) | $20 | — | — |
| Email Template Library(templates) | 500+ | — | — |
| Lead Scoring Accuracy(percent) | 35% | — | — |
| SMS Open Rate(percent) | 98% | — | — |
| Free Plan Contact Limit(contacts) | 500 | No free plan | |
| Email Deliverability Rate(%) | 98.5% | — | — |
| Native E-commerce Integrations(integrations) | 25+ including Shopify, WooCommerce, Amazon, TikTok Shop, custom APIs | — | — |
| Setup Time (Minutes)(minutes) | 30-45 | — | — |
| Automation Workflows (Free Tier)(workflows) | 5 active automations | — | — |
| Available Template Library(templates) | 150+ with AI generation | — | — |
| Starting Monthly Price(USD) | $20 | $20 | |
| SMS Average Revenue Per Message(USD) | $0.45 | — | — |
| Base Monthly Price(USD) | $20 (for 500 contacts) | — | — |
| Free Trial Length(days) | 14 days | — | — |
| Email Templates Available(templates) | 500+ | — | — |
| Average Implementation Time(days) | 1-2 weeks (visual setup) | — | — |
| API Rate Limit (Standard Plan)(requests/second) | 500 | — | — |
| Maximum Contact Database Size(million contacts) | 100+ million | — | — |
| Core Marketing Channels(channels) | 3 channels | 3 channels | |
| Learning Curve Rating(1-10 scale) | 3 (very beginner-friendly) | 3 (very beginner-friendly) | |
| Starting Price (Monthly)(USD) | $20+ | $20+ | |
| Max Contacts at Entry Plan(contacts) | 500 contacts | 500 contacts | |
| Mid-Tier Plan Price(USD/month) | $35/month (Standard) | $35/month (Standard) | |
| Third-Party Integrations(count) | 250+ | 250+ | |
| Starter Plan Monthly Price(USD) | $12/month | $12/month | |
| Professional/Standard Plan Monthly Price(USD) | $80/month | $80/month | |
| Cost per User Monthly (Starter Annual)(USD) | $12/month | $12/month | |
| vs Average SMB Marketing Budget(Percent of $72/user/month) | 17% of average | 17% of average | |
| Entry Subscriber Limit(Contacts) | 500 contacts | 500 contacts | |
| Mid-Tier Plan (5,000 contacts)(USD/month) | $50 | $50 | |
| Email Delivery Speed(minutes) | Near-instantaneous (seconds to minutes) | Near-instantaneous (seconds to minutes) | |
| Landing Page Templates(templates) | 50+ | 50+ | |
| Automation Workflow Triggers(count) | 15 | 15 | |
| Native Integrations(count) | 1,000+ | 1,000+ | |
| Customer Support Response Time(hours) | 24/7 (phone, email, live chat) | 24/7 (phone, email, live chat) | |
| Monthly Cost (10,000 contacts)(USD) | $300/month | $300/month | |
| Email Templates Included(templates) | 500+ templates | 500+ templates | |
| Annual Cost Savings vs Constant Contact (10K contacts)(USD) | Baseline ($3,600/year) | Baseline ($3,600/year) | |
| Entry-Level Monthly Cost(USD) | $20 | $20 | |
| Ecommerce Integrations(integrations) | 8+ | 8+ |
Sourced from publicly available data ·
Key Differences
8 attributes compared head-to-head
- E-commerce personalization and advanced automation(winner)Primary Use CaseGeneral small business email marketing
- $25/month (based on order volume)Starting Price$12/month (up to 500 contacts)(winner)
- $720-$825+ (50,000+ profiles)Mid-Market Monthly Cost$80/month (comparable tier)(winner)
- $0.01-$0.015 per message(winner)SMS PricingNot prominently featured
- Advanced customer data platform with AI(winner)Data-Driven PersonalizationBasic segmentation features
- Steeper learning curveEase of UseIntuitive and beginner-friendly(winner)
- Advanced multi-channel automation(winner)Automation WorkflowsStandard email automation
- High-growth e-commerce brands(winner)Best for GrowthSmall to medium local businesses
- Primary Use Case
Klaviyo
E-commerce personalization and advanced automation(winner)
Constant Contact
General small business email marketing
- Starting Price
Klaviyo
$25/month (based on order volume)
Constant Contact
$12/month (up to 500 contacts)(winner)
- Mid-Market Monthly Cost
Klaviyo
$720-$825+ (50,000+ profiles)
Constant Contact
$80/month (comparable tier)(winner)
- SMS Pricing
Klaviyo
$0.01-$0.015 per message(winner)
Constant Contact
Not prominently featured
- Data-Driven Personalization
Klaviyo
Advanced customer data platform with AI(winner)
Constant Contact
Basic segmentation features
- Ease of Use
Klaviyo
Steeper learning curve
Constant Contact
Intuitive and beginner-friendly(winner)
- Automation Workflows
Klaviyo
Advanced multi-channel automation(winner)
Constant Contact
Standard email automation
- Best for Growth
Klaviyo
High-growth e-commerce brands(winner)
Constant Contact
Small to medium local businesses
Full Comparison
| Attribute | Klaviyo | Constant Contact |
|---|---|---|
| Starting Price (Entry Tier)(USD/month) | $20/month | — |
| Cost at 5,000 Contacts/Profiles(USD/month) | $100/month | — |
| Cost at 50,000 Contacts/Profiles(USD/month) | $720/month | — |
| Starting Price (Email Only)(USD/month) | $20/month (500 contacts) | — |
| Price at 100K Contacts(USD/month) | Varies by plan features | — |
Show 23 more attributesPricing Structure Active profiles (contacts with behavior) — Free Contact Storage(contacts) Limited (plan-dependent) — Starting Monthly Price(USD) $20+ (usage-based) — Entry-Level Monthly Price(USD) $25 $12 Price at 50,000 Contacts(USD) $720 $80 Starting Price(USD/month) $20 — Starting Monthly Cost(USD) $20-45 — Free Email Monthly Limit(emails) None — Base Monthly Cost(USD) $20 — Free Plan Contact Limit(contacts) 500 No free plan Free Tier Subscriber Limit(subscribers) None (paid only) Trial only (60 days) Starting Monthly Price(USD) $20 $20 Base Monthly Price(USD) $20 (for 500 contacts) — Free Trial Length(days) 14 days — Free Plan Available No — Starting Price (Monthly)(USD) $20+ — Mid-Tier Plan Price(USD/month) $35/month (Standard) — Starter Plan Monthly Price(USD) $12/month — Professional/Standard Plan Monthly Price(USD) $80/month — Cost per User Monthly (Starter Annual)(USD) $12/month — Mid-Tier Plan (5,000 contacts)(USD/month) $50 — Monthly Cost (10,000 contacts)(USD) $300/month — Entry-Level Monthly Cost(USD) $20 — | ||
| Free Plan Email Features | All email features included | — |
| Email Template Design Options(variety level) | eCommerce-optimized templates | — |
| Segmentation Capabilities(trigger types) | Advanced behavior-led segmentation | — |
| Customer Data Integration(depth level) | Unified customer data foundation | — |
| Campaign Scheduling | Smart scheduling with AI optimization | — |
Show 34 more attributesSegmentation Capability Advanced behavioral data segmentation — Channels Supported(count) 3 (Email, SMS, WhatsApp) — AI Features Available(count) Personalized send time optimization — Customer Data Platform Built-in CDP as core foundation — Automation Capabilities(features) Unlimited triggered sequences with advanced conditional logic Basic automation sequences Multi-Channel Support(channels) Email and SMS — Channels Supported(count) Email, SMS, Web Push, Forms — Segmentation Capabilities Behavioral, predictive, e-commerce segments, custom attributes — Personalization Capabilities AI-powered with customer data platform Basic segmentation Email Integrations Count(integrations) 400+ — Landing Page Builder No, third-party required Yes (template-based) SMS Capability(native integration) Native SMS included — E-commerce Templates Available(count) 200+ Shopify-optimized — Automation Workflow Complexity Unlimited with predictive optimization 12 pre-built templates Email Template Library(templates) 500+ — Lead Scoring Accuracy(percent) 35% — Native E-commerce Integrations(integrations) 25+ including Shopify, WooCommerce, Amazon, TikTok Shop, custom APIs — Automation Workflows (Free Tier)(workflows) 5 active automations — Available Template Library(templates) 150+ with AI generation — SMS Channel Support(available) Yes (all plans) — Email Templates Available(templates) 500+ — Native Mobile App Push Support Web push only — Core Marketing Channels(channels) 3 channels — SMS Marketing Capability Yes, core feature — Built-in CRM No — AI Predictive Features Not available — CRM Integration Level Email-centric, limited CRM — Entry Subscriber Limit(Contacts) 500 contacts — Landing Page Templates(templates) 50+ — Automation Workflow Triggers(count) 15 — Email Templates Included(templates) 500+ templates — CRM Features Basic contact management only — Max Contacts (Paid Plan)(contacts) Unlimited — Automation Workflows(workflows) Limited on basic tiers — | ||
| Monthly Email Send Limit (Entry Plan)(emails/month) | 5,000+ | — |
| Free Plan SMS Capability | Not included | — |
| Entry-Level Pricing Accessibility | Higher minimum investment required | — |
| Free Plan Segmentation Limits(segments) | Basic email features only | — |
| Pre-Built Integrations(count) | Extensive custom via API | — |
| E-commerce Integration Quality | Native integration with major platforms | Limited e-commerce features |
| Shopify Integration | Yes (native + Plus tier) | — |
| Third-Party Integrations(count) | 250+ | — |
| Native Integrations(count) | 1,000+ | — |
Show 1 more attributeEcommerce Integrations(integrations) 8+ — | ||
| Customer Data Behavioral Depth | Real-time behavioral graphs with continuous updates | — |
| Omnichannel Support(channels) | Email, SMS, push, in-app, direct mail | — |
| Target Market Focus | Mid-to-large ecommerce, Shopify Plus, data-driven brands | — |
| Target Business Size | SMB to Enterprise (all Shopify store sizes) | — |
| Average eCommerce Email Revenue Per Send(USD) | $72 | — |
| eCommerce Email Automation ROI(%) | 4,200% ROI (industry average) | — |
| Built-in CRM for Sales Teams | B2C customer data platform | — |
| CRM Lead Scoring Capability(null) | Behavioral purchase-event segmentation | — |
| Native SMS Channel | Included in all plans | — |
| Shopify Integration Depth | Native with product catalog sync, dynamic blocks, and product recommendations | — |
| Multi-Channel Automation Support | Email, SMS, push (native) | — |
| Segmentation Filter Count(filters) | 45+ filters | — |
| Two-Way Messaging | Limited 2-way capability | — |
| Email Marketing Integration | Native email + SMS + pop-ups | — |
| Client Revenue Tracked (Lifetime)(million USD) | $50M+ | — |
| A/B Testing | Yes, multi-channel A/B testing | — |
| Email Support Cost(USD/month) | Included (higher plans only) | — |
| Customer Support Availability(hours/day) | 24/5 email, phone 9-5 EST | — |
| 24/7 Support Availability | Yes, all plans included | — |
| Customer Support Response Time(hours) | 24/7 (phone, email, live chat) | — |
| Phone Support Availability(hours/day) | 24/7 (all plans) | — |
| Setup Complexity(complexity score) | Steeper learning curve (data-focused) | — |
| Platform Rating(out of 5) | 4.7/5 | — |
| AI-Powered Features(count) | Predictive send-time optimization (Q4 2025), AI-driven personalization | — |
| Deliverability Grade | Enterprise-grade, proven at scale with dedicated infrastructure | — |
| Typical Onboarding Time(weeks) | 7-14 | — |
| Learning Curve Rating(1-10 scale) | 3 (very beginner-friendly) | — |
| eCommerce Revenue Attribution(USD per email) | $72 per email sent | — |
| eCommerce Platform ROI(%) | Industry average 4,200% | — |
| Shopify Native Integration Depth(null) | Deep native with purchase-event segmentation | — |
| API Rate Limits(requests/second) | 60 | — |
| API Rate Limit(requests/second) | 500 req/sec | Unlimited (on request) |
| Primary Geographic Strength(null) | North America eCommerce focus | — |
| Email Deliverability Rate(%) | 99.2% | — |
| SMS Deliverability Rate(percent) | 98% | — |
| Open Rate Improvement (avg)(percent increase) | 10-15% with predictive send time | — |
| Deliverability Rating(percent) | 99.1% | — |
| SMS Open Rate(percent) | 98% | — |
Show 3 more attributesEmail Deliverability Rate(%) 98.5% — API Rate Limit (Standard Plan)(requests/second) 500 — Email Delivery Speed(minutes) Near-instantaneous (seconds to minutes) — | ||
| API Rate Limit(requests per second) | 10,000 | — |
| Mobile App Users(millions) | 150,000+ e-commerce merchants | — |
| Learning Curve(difficulty level) | 1-2 weeks | — |
| Setup Time (Minutes)(minutes) | 30-45 | — |
| SMS Cost Per Message(USD) | $0.01-$0.015 | Not offered |
| Automation Complexity Level | Advanced multi-channel | Standard email-based |
| Ease of Use Score(/10) | 6.5 | 9(winner) |
| Ease of Use(score/10) | Very easy - beginner-friendly | — |
| Maximum Subscriber Limit(contacts) | Unlimited | Unlimited |
| Maximum Contacts (Affordable Tier)(contacts) | Unlimited | — |
| Maximum Contact Database Size(million contacts) | 100+ million | — |
| SMS Marketing Included | Yes, native SMS | Add-on ($30-$60/month extra) |
| Behavioral Automation Triggers(triggers) | 200+ | — |
| Implementation Time(weeks) | 1-2 days | — |
| Average Implementation Time(days) | 1-2 weeks (visual setup) | — |
| SMS Average Revenue Per Message(USD) | $0.45 | — |
| Segmentation Depth | Standard list-based segmentation | — |
| Max Contacts at Entry Plan(contacts) | 500 contacts | — |
| vs Average SMB Marketing Budget(Percent of $72/user/month) | 17% of average | — |
| Annual Cost Savings vs Constant Contact (10K contacts)(USD) | Baseline ($3,600/year) | — |
| Ideal Business Size(GMV) | Solo to small business (1-50 employees) | — |
KlaviyoShow 23 more attributes
Show 34 more attributes
Show 1 more attribute
Show 3 more attributes
Pros & Cons
10 pros·4 cons across both
Klaviyo
Pros
- Superior data segmentation and customer profiling for personalized campaigns
- Advanced multi-channel automation including email, SMS, and push notifications
- AI-powered predictive analytics and behavioral targeting
- Native e-commerce integrations with Shopify, BigCommerce, and WooCommerce
- Detailed performance analytics and customer journey mapping
Cons
- Higher pricing structure requires significant budget investment
- Steeper learning curve with complex interface for beginners
Constant Contact
Pros
- Affordable entry price starting at $12/month for small contact lists
- Intuitive drag-and-drop interface requiring minimal training
- Built-in templates and easy campaign creation for non-technical users
- Solid local business features including event management and social media posting
- Responsive customer support and extensive knowledge base
Cons
- Limited advanced automation compared to enterprise platforms
- Pricing escalates quickly as contact list grows beyond 5,000 contacts
Frequently Asked Questions
5 questions
Klaviyo is significantly better for e-commerce businesses. It offers native integrations with Shopify and other major platforms, advanced customer data capabilities for behavioral targeting, and specialized features like abandoned cart recovery and product recommendation automation. Constant Contact is more general-purpose and lacks dedicated e-commerce optimization.
Resources & Learn More
Curated sources to dive deeper
Where to Buy
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Wikipedia
- W
Klaviyo on Wikipedia (opens in new tab)
E-commerce focused email and SMS marketing platform designed for growth-stage businesses with visual automation builder.
- W
Constant Contact on Wikipedia (opens in new tab)
User-friendly email marketing platform emphasizing customer support and simple campaign management for small businesses.
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