Constant Contact vs Klaviyo vs Outgrow vs ActiveCampaign Comparison
Constant Contact
Starting at Contact for pricing
- Free Trial
- Large Enterprises
- Medium Business
Constant Contact is a comprehensive email marketing platform that helps small businesses manage email marketing and social media promotions. With time-saving tools to help you find your customers and easily communicate w…
Klaviyo
Starting at Contact for pricing
- Large Enterprises
- Medium Business
Klaviyo is a powerful marketing automation platform that allows you to attract new customers, drive sales, and build your list. The simple, intuitive interface makes it easy to create targeted campaigns visitors will lov…
Outgrow
Starting at Contact for pricing
- Free Trial
- Large Enterprises
- Medium Business
Outgrow is a powerful marketing automation suite that helps you grow your business with marketing and sales software integrations, lead scoring for sales, and personalization capabilities. It is an easy-to-use, powerful…
ActiveCampaign
Starting at $29 /User/Month
- Free Trial
- Freelancers / Consultants
- Large Enterprises
ActiveCampaign is the most powerful marketing automation tool designed to help you nail your next digital campaign. From nurture campaigns that convert new subscribers into long-term customers, to smart lead scoring that…
Klaviyo leads on user satisfaction with a 4.4-star rating across 1,985 reviews.
Constant Contact vs Klaviyo vs Outgrow vs ActiveCampaign — at a glance
| Feature | Constant Contact | Klaviyo | Outgrow | ActiveCampaign |
|---|---|---|---|---|
| Rating | 3.7 / 5 | 4.4 / 5 | 4.7 / 5 | 4.5 / 5 |
| Reviews | 7,452 | 1,985 | 567 | 12,031 |
| Starting price | Contact for pricing | Contact for pricing | Contact for pricing | $29 /User/Month |
| Free trial | Yes | No | Yes | Yes |
| Free version | No | No | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business | Freelancers / Consultants, Large Enterprises, Medium Business |
| Category | Email Marketing Software | Marketing Automation Software | Marketing Automation Software | Marketing Automation Software |
| Integrations | 1+ apps | 10+ apps | — | — |
| Platforms | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS | SaaS/Web/Cloud | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS |
| API | Available | Available | Available | Available |
| Support modes | Business Hours, Online | Business Hours, Online | 24/7 (Live rep), Online | Business Hours, Online |
| Certifications | SOC 2, GDPR | SOC 2, GDPR | GDPR | SOC 2, HIPAA, GDPR |
| Data residency | US | Global | Global | Global |
Key differences between Constant Contact and Klaviyo
- Free trial: Constant Contact offers a free trial; Klaviyo does not.
- User satisfaction: Klaviyo scores higher with a 4.4-star average.
- Deployment: Constant Contact supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS; Klaviyo supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS.
Compare Constant Contact vs Klaviyo vs Outgrow vs ActiveCampaign — and walk away knowing which one fits.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Email Marketing Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
Talk to an expert Talk to an expert |
Biggest differences
Start here before you go deeper into features.
Best for small to mid-sized businesses needing simple, effective email marketing.
- You are a small business or nonprofit with up to 500 employees seeking easy email marketing setup.
- You want a user-friendly platform with customizable templates and A/B testing for campaigns.
- You need real-time analytics to monitor and optimize email marketing performance quickly.
- Your organization is a large enterprise requiring complex multi-channel marketing and advanced automation.
- You need deep CRM integrations and sophisticated marketing automation beyond basic email features.
Best for scalable, advanced email and SMS marketing in ecommerce.
- You manage marketing for medium to large ecommerce or DTC brands.
- You need powerful automation with deep personalization and revenue analytics.
- You want seamless integration with Shopify, BigCommerce, and subscription businesses.
- You are a small business needing a simple, minimal-feature email tool.
- Your team lacks capacity to handle a steep learning curve or complex features.
Best for creating interactive lead generation content with easy marketing automation.
- You need to build quizzes, calculators, or surveys without coding skills.
- Your focus is on lead generation and customer engagement campaigns.
- You want a user-friendly platform with versatile customizable templates.
- Your company requires extensive third-party app integrations and marketplace options.
- You need complex, enterprise-level automation workflows beyond simple streamlined setups.
Best for SMBs needing powerful, flexible marketing automation with integrated CRM.
- You want robust automation workflows with a visual builder for complex campaigns.
- You need strong segmentation and targeting for personalized marketing efforts.
- You value responsive, knowledgeable customer support to help navigate the platform.
- You require highly advanced, flexible email design customization beyond platform limits.
- You prefer very simple, minimal automation tools with little to no learning curve.
Constant Contact: Best for small to mid-sized businesses needing simple, effective email marketing. Klaviyo: Best for scalable, advanced email and SMS marketing in ecommerce.
Description | Constant Contact is a comprehensive email marketing platform that helps small businesses manage email marketing and social media promotions. With time-saving tools to help you find your ... Read More about Constant Contact | Klaviyo is a powerful marketing automation platform that allows you to attract new customers, drive sales, and build your list. The simple, intuitive interface makes it easy to create ... Read More about Klaviyo | Outgrow is a powerful marketing automation suite that helps you grow your business with marketing and sales software integrations, lead scoring for sales, and personalization capabilities. ... Read More about Outgrow | ActiveCampaign is the most powerful marketing automation tool designed to help you nail your next digital campaign. From nurture campaigns that convert new subscribers into long-term ... Read More about ActiveCampaign |
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Spotsaas ScoreWhat's this? ↗ | 9.6/10 | 9.5/10 | 9.0/10 | 9.8/10 |
User RatingsBased on verified Spotsaas reviews | ||||
Best Company Size | 1-50 employees51-500 employees | 201-500 employeesMedium to large businesses | Small BusinessMedium Business | 10-500 employeesSmall to medium businesses |
Get pricing help | Get pricing help |
Where each option fits best
See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.
Based on buyer reviews and verified product data collected by Spotsaas.
Key strengths
- User-Friendly Interface: With Constant Contact, even those who aren't tech-savvy can easily navigate the platform. Managers and administrators will appreciate how quickly their teams can get up to speed and start creating effective email campaigns.
- Comprehensive Email Marketing Tools: This platform offers a robust suite of features, including customizable templates, list segmentation, and A/B testing. Executives will find that these tools help optimize campaign performance and drive higher engagement rates.
- Real-Time Analytics: Constant Contact provides detailed reporting that tracks open rates, click-through rates, and conversions. This allows you to make informed decisions based on real data, ensuring your marketing strategies are always aligned with business goals.
- Scales with fast-growing D2C brands: Klaviyo is built to handle large contact lists, high send volumes, and complex automation as brands grow. Its infrastructure supports scaling without switching platforms, making it a long-term choice for ecommerce brands moving from early growth to mature operations.
- Strong analytics and revenue attribution: Klaviyo provides detailed reporting on campaign performance, flow revenue, conversion rates, and customer lifetime value. This makes it easier for teams to understand which messages are driving revenue and where to optimize. Clear attribution helps justify marketing spend and refine lifecycle strategies over time.
- Personalization at scale: With dynamic content blocks, conditional logic, and product recommendations, Klaviyo allows brands to personalize messages for thousands or millions of customers at once. Emails and texts can adapt based on customer preferences, purchase history, and engagement, improving relevance without increasing campaign complexity.
No key benefits available yet.
- Seamless Automation: ActiveCampaign empowers your marketing team to create highly personalized customer experiences through robust automation workflows. Imagine setting up a campaign that runs itself, engaging customers at the right moments without manual intervention.
- Advanced CRM Functionality: With its integrated CRM, ActiveCampaign helps you manage customer relationships efficiently. You'll gain insights into your sales pipeline and customer interactions, allowing you to make informed decisions that drive growth.
- Segmentation and Targeting: This platform enables precise audience segmentation, making it easier for you to tailor messages based on user behavior and preferences. By doing so, you can significantly increase engagement rates and conversions.
Best fit
- 1 to 500 employees
- Marketing Technology (Martech), Nonprofits, Retail, E-commerce, and Event Management
- Marketing Managers, Small Business Owners, Nonprofit Fundraising Coordinators, and Event Planners
- 201–500
- Ecommerce, DTC Brands, Retail, Fashion & Apparel, Beauty & Cosmetics, Health & Wellness, Consumer Goods, Subscription Businesses
- Marketing Manager, Ecommerce Manager, Growth Marketer, CRM Manager, Lifecycle Marketing Manager, Head of Marketing, Founder, DTC Brand Owner
No best-fit guidance available yet.
- 10 to 500 employees
- Martech, SaaS, E-commerce, Consulting, and Nonprofits
- Marketing Managers, Sales Managers, Customer Success Representatives, and CRM Administrators
Reasons buyers look elsewhere
- Users seeking advanced automation features may find alternatives more appealing, as some platforms offer more sophisticated tools for targeted campaigns and customer segmentation that enhance marketing efficiency.
- Budget-conscious businesses might explore alternatives that provide similar functionalities at a lower cost, ensuring they can maintain effective email marketing without straining their finances.
- Companies with specific industry needs might prefer alternatives that offer tailored solutions or integrations with niche software, allowing for a more customized approach to their marketing strategies.
- Some alternatives offer built-in AI copywriting, automated creative optimization, and predictive content suggestions directly inside the editor, which can appeal to teams that want more AI-driven campaign assistance without manual setup.
- Brands with heavy international customer bases might need specialized messaging providers with localized SMS routes, compliance support, and pricing optimized for global reach — areas where some competitors excel.
- While Klaviyo supports key ecommerce platforms, organizations using niche or custom systems may require platforms with larger marketplace ecosystems or plug-and-play connectors for non-commerce tools.
No alternatives guidance available yet.
- Users may seek alternatives due to budget constraints, as ActiveCampaign can be relatively expensive for small businesses or startups looking for cost-effective marketing automation solutions.
- Some users might find the learning curve steep, prompting them to explore more intuitive platforms that offer user-friendly interfaces and easier onboarding processes.
- Businesses with specific needs, such as e-commerce integration or advanced CRM features, may look for alternatives that provide tailored functionalities better suited to their unique operational requirements.
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How do Constant Contact, Klaviyo, Outgrow and ActiveCampaign Compare on Features?
Total Features | 26 Features | 10 Features | 19 Features | 30 Features |
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Unique Features | No unique features | No unique features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Constant Contact, Klaviyo, Outgrow and ActiveCampaign on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Other Details
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | ✓ Yes | ✓ Yes |
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HIPAA | ✗ No | ✗ No |
GDPR | ✓ Yes | ✓ Yes |
ISO 27001 | — | ✗ No |
Single Sign-On (SSO) | ✓ Yes | ✓ Yes |
Multi-Factor Auth (MFA) | ✓ Yes | ✓ Yes |
Data Encryption | ✓ Yes | ✓ Yes |
Audit Logs | — | ✓ Yes |
Data Residency | 🇺🇸 US | 🌐 Global |
Constant Contact vs Klaviyo vs Outgrow User Reviews & Rating Comparison
User Ratings | 3.7 (based on 7452 reviews) | |||
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Rating Distribution | ||||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyers appreciate Constant Contact for its ease of use and solid email marketing features but note limitations for larger or more complex marketing needs. What buyers like
Common complaints
| Buyer sentiment Buyers appreciate Klaviyo’s powerful automation and excellent support but note a learning curve and sales pressure as drawbacks. What buyers like
Common complaints
| Buyer sentiment Users generally praise Outgrow for its ease of use, customization options, and strong lead generation features, though some note limitations in integrations and advanced feature complexity. What buyers like
Common complaints
| Buyer sentiment Overall, buyers appreciate ActiveCampaign for its powerful automation, excellent support, and user-friendly interface, though some find the learning curve and email design limitations challenging. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product | No reviews available for the product | No reviews available for the product |
Integrations
Integration with other apps | No Integration information available. | No Integration information available. |
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List of Customers
Customers |  Mathnasium  KW  The UPS Store |  YETI  Steve Madden  Bonobos |  Github  Codepen  VOD |  Platinum Skin Care  MOM  Heather Read Photography |
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Media and Screenshots
Screenshots |  7 Screenshots |  3 Screenshots |
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Videos |  4 Videos |  1 Videos |
Alternatives
Alternatives |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Constant Contact or Klaviyo?
- Klaviyo edges out the other on user ratings (4.4 vs 3.7). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Constant Contact and Klaviyo offer a free trial?
- Constant Contact offers a free trial. Klaviyo does not.
- What is the starting price of Constant Contact vs Klaviyo?
- Constant Contact starts at Contact for pricing. Klaviyo starts at Contact for pricing.
- What are the top alternatives to Constant Contact?
- Top alternatives to Constant Contact include Campaigner, Moosend, SMTP, FreshMail, AWeber.
- What are the top alternatives to Klaviyo?
- Top alternatives to Klaviyo include Outgrow, ActiveCampaign, CleverTap, Moosend, Omnisend.