Constant Contact vs Klaviyo

Choosing Between Constant Contact and Klaviyo for Your Retail & E-commerce Business

Thinking of switching from Constant Contact to Klaviyo (or vice versa)? This comparison covers features, costs, and migration considerations to help mid-market Australian businesses make an informed decision.

Features compared

50+

Clients advised

98%

Client retention

12+

Years experience

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Feature Comparison

Side-by-side feature analysis for Constant Contact and Klaviyo.

Email campaign builder

Constant Contact

Email editor with 200+ mobile-responsive templates and drag-and-drop builder makes creating professional campaigns accessible for non-designers

Klaviyo

Flow builder for automated email and SMS sequences with branching logic based on real purchase behaviour outperforms generic marketing automation tools

Both platforms are strong here. Constant Contact emphasises this as a core strength, and Klaviyo also invests heavily in email campaign builder. Review each platform's approach to see which aligns with your team's workflow.

Audience segmentation

Constant Contact

Contact management with list segmentation, tagging, and automatic bounce handling keeps lists healthy without manual maintenance

Klaviyo

Segmentation engine uses real-time behavioural data including product views, cart activity, and purchase history for hyper-targeted campaigns

Both platforms are strong here. Constant Contact emphasises this as a core strength, and Klaviyo also invests heavily in audience segmentation. Review each platform's approach to see which aligns with your team's workflow.

Automation workflows

Constant Contact

Limitation: Automation capabilities are basic compared to ActiveCampaign and Klaviyo, with limited conditional logic and branching in workflows

Klaviyo

Flow builder for automated email and SMS sequences with branching logic based on real purchase behaviour outperforms generic marketing automation tools

Klaviyo highlights automation workflows as a core strength. Constant Contact offers the capability but does not position it as a primary differentiator.

Analytics and reporting

Constant Contact

Limitation: Reporting is functional but lacks the depth of competitors, particularly for revenue attribution and advanced campaign analytics

Klaviyo

Predictive analytics including customer lifetime value, churn risk, and expected next order date enable genuinely data-driven marketing decisions

Klaviyo highlights analytics and reporting as a core strength. Constant Contact offers the capability but does not position it as a primary differentiator.

Template library

Constant Contact

Email editor with 200+ mobile-responsive templates and drag-and-drop builder makes creating professional campaigns accessible for non-designers

Klaviyo

Limitation: Template design capabilities are adequate but less polished than Mailchimp, requiring more custom HTML for sophisticated layouts

Constant Contact highlights template library as a core strength. Klaviyo offers the capability but does not position it as a primary differentiator.

Deliverability

Constant Contact

Constant Contact provides deliverability functionality, popular with Retail & E-commerce businesses

Klaviyo

Klaviyo provides deliverability functionality, popular with Retail & E-commerce businesses

On paper deliverability looks similar across Constant Contact and Klaviyo, but the admin experience, reporting, and permission model tend to be the real differentiators.

A/B testing

Constant Contact

Limitation: A/B testing is limited to subject lines on most plans, missing full content, send-time, and audience testing capabilities

Klaviyo

Klaviyo provides a/b testing functionality, popular with Retail & E-commerce businesses

Constant Contact and Klaviyo take different philosophical approaches to a/b testing; the better fit is usually the one that matches how your team already thinks about the problem.

List management

Constant Contact

Event marketing tools with registration pages, ticket sales, and attendee management are built in and genuinely useful for event-driven businesses

Klaviyo

Limitation: Pricing scales steeply with contact list size and can become expensive quickly for businesses with large but low-engagement subscriber lists

Constant Contact highlights list management as a core strength. Klaviyo offers the capability but does not position it as a primary differentiator.

Landing pages

Constant Contact

Event marketing tools with registration pages, ticket sales, and attendee management are built in and genuinely useful for event-driven businesses

Klaviyo

Klaviyo provides landing pages functionality, popular with Retail & E-commerce businesses

Constant Contact highlights landing pages as a core strength. Klaviyo offers the capability but does not position it as a primary differentiator.

Third-party integrations

Constant Contact

Constant Contact connects with 44+ tools natively, offering one of the broadest integration ecosystems in its category

Klaviyo

Klaviyo connects with 59+ tools natively, offering one of the broadest integration ecosystems in its category

Klaviyo has a broader native ecosystem (59+ integrations) compared to Constant Contact (44+). Both connect via automation platforms like Zapier and Make.

Ease of setup

Constant Contact

Limitation: Pricing has increased substantially and no longer represents the budget option it once was, narrowing the gap with more capable alternatives

Klaviyo

Klaviyo provides onboarding resources. Setup complexity depends on your configuration requirements

ease of setup capabilities vary by plan tier on both platforms. Confirm the specific features you need are available at your target price point before committing.

Value for money

Constant Contact

Lite from approximately $18/month, Standard from approximately $45/month, Premium from approximately $110/month (AUD, 500 contacts). Pricing scales with contact count. Annual billing discounts available. No free plan.

Klaviyo

Predictive analytics including customer lifetime value, churn risk, and expected next order date enable genuinely data-driven marketing decisions

Klaviyo highlights value for money as a core strength. Constant Contact offers the capability but does not position it as a primary differentiator.

Pricing Comparison

General pricing information for each platform.

Constant Contact

Pricing is indicative only and subject to change. We recommend contacting the vendor for a tailored quote based on your Australian business needs.

Klaviyo

Free plan for up to 250 contacts. Email from approximately $30/month (500 contacts), Email + SMS from approximately $45/month (AUD). Pricing scales with contact count. SMS credits purchased separately on top of platform fee.

Prices shown are approximate and may differ based on your plan, team size, and billing cycle. Verify directly with the vendor for current AUD rates.

Pros & Cons

An honest look at the strengths and limitations of each platform.

Constant Contact

Pros

Email editor with 200+ mobile-responsive templates and drag-and-drop builder makes creating professional campaigns accessible for non-designers
Event marketing tools with registration pages, ticket sales, and attendee management are built in and genuinely useful for event-driven businesses
Social media posting, ad creation, and inbox management are included in the platform, reducing the need for separate social media tools
Phone and live chat support is available on all paid plans, which is increasingly rare among email marketing platforms
Contact management with list segmentation, tagging, and automatic bounce handling keeps lists healthy without manual maintenance

Cons

Automation capabilities are basic compared to ActiveCampaign and Klaviyo, with limited conditional logic and branching in workflows
Pricing has increased substantially and no longer represents the budget option it once was, narrowing the gap with more capable alternatives
Reporting is functional but lacks the depth of competitors, particularly for revenue attribution and advanced campaign analytics
A/B testing is limited to subject lines on most plans, missing full content, send-time, and audience testing capabilities

Klaviyo

Pros

E-commerce data integration is best in class with Shopify, WooCommerce, and BigCommerce syncing purchase history, browse behaviour, and product data automatically
Predictive analytics including customer lifetime value, churn risk, and expected next order date enable genuinely data-driven marketing decisions
Flow builder for automated email and SMS sequences with branching logic based on real purchase behaviour outperforms generic marketing automation tools
Segmentation engine uses real-time behavioural data including product views, cart activity, and purchase history for hyper-targeted campaigns
Revenue attribution reporting shows exactly which emails and flows generated revenue, giving marketers clear ROI on every campaign

Cons

Pricing scales steeply with contact list size and can become expensive quickly for businesses with large but low-engagement subscriber lists
SMS pricing is per-message on top of the platform fee, making multi-channel campaigns more expensive than single-channel alternatives
Template design capabilities are adequate but less polished than Mailchimp, requiring more custom HTML for sophisticated layouts
Learning curve is steeper than simpler email tools, with the depth of segmentation and flow options initially overwhelming for small teams

Best For

Which tool suits which use case.

Choose Constant Contact if you need

✓ Marketing analytics
✓ Teams needing extensive third-party integrations
✓ Retail & E-commerce businesses
✓ Content distribution
✓ Education organisations

Choose Klaviyo if you need

✓ Email marketing campaigns
✓ Real-time data sync across platforms
✓ Audience segmentation
✓ Retail & E-commerce businesses
✓ Teams needing extensive third-party integrations

Expert Verdict

Our Harvard-educated consultants' take on this comparison.

Clever Ops Recommendation

Choose Constant Contact if small businesses and nonprofits that need straightforward email marketing with event management, social media tools, and phone support included in the package. Choose Klaviyo if e-commerce businesses on Shopify, WooCommerce, or BigCommerce that want to leverage purchase data for automated email and SMS marketing with strong revenue attribution. Avoid Constant Contact if businesses that need sophisticated marketing automation workflows, or e-commerce companies requiring deep purchase-behaviour-based segmentation and revenue tracking. Avoid Klaviyo if service businesses without e-commerce transaction data, or small businesses with simple email newsletter needs where Mailchimp or Brevo offer better value. If you are still weighing the trade-offs, Clever Ops offers a free assessment where our Harvard-educated consultants map your requirements to the right platform.

Migration Notes

What to know about switching between Constant Contact and Klaviyo.

Migrating Between Constant Contact and Klaviyo

A successful migration from Constant Contact to Klaviyo (or vice versa) is not just about data - it is about your team. Clever Ops handles the technical migration of lists, campaigns, templates and custom fields, but we also provide hands-on training so your team is confident on the new platform from day one. The full process, including training, typically takes 4-8 weeks.

Constant Contact vs Klaviyo FAQ

Yes. Constant Contact provides a REST API and Klaviyo provides a REST + Webhook API, so we can build reliable integrations between them. Common sync patterns include lists, campaigns, templates. Our integrations include error handling, retry logic, and monitoring. Clients typically save 8+ hours/week once the integration is live.

Constant Contact strengths: Email editor with 200+ mobile-responsive templates and drag-and-drop builder makes creating professional campaigns accessible for non-designers. Event marketing tools with registration pages, ticket sales, and attendee management are built in and genuinely useful for event-driven businesses. Klaviyo strengths: E-commerce data integration is best in class with Shopify, WooCommerce, and BigCommerce syncing purchase history, browse behaviour, and product data automatically. Predictive analytics including customer lifetime value, churn risk, and expected next order date enable genuinely data-driven marketing decisions. The features that matter most depend on your team's daily workflows and growth plans. Clever Ops can help you map your requirements to the right platform.

Constant Contact is generally simpler to set up. Klaviyo typically requires more configuration and may benefit from expert implementation support. Clever Ops provides implementation services for both platforms, typically completing setup within 2 weeks.

Constant Contact uses a REST API (REST API v3 with OAuth 2.0 authentication. Rate limited to 10,000 requests per day and 4 requests per second. Supports webhooks for contact activity. JSON responses. Bulk operations available for contacts.), while Klaviyo uses a REST + Webhook API (REST API (revision 2024-02-15+) with private API key authentication. Rate limited to 75 requests per second for most endpoints. JSON:API format with compound documents. Webhooks available for flow and profile events.). Constant Contact supports 7 core data objects; Klaviyo supports 8. Klaviyo supports webhooks for real-time sync. With 12+ of integration experience, Clever Ops can tell you exactly how each API performs in production.

ROI depends on three factors: how well the platform is configured, how thoroughly your team adopts it, and how tightly it integrates with your other tools. Constant Contact delivers value through Email editor with 200+ mobile-responsive templates and drag-and-drop builder makes creating professional campaigns accessible for non-designers. Klaviyo delivers value through E-commerce data integration is best in class with Shopify, WooCommerce, and BigCommerce syncing purchase history, browse behaviour, and product data automatically. A poorly set-up tool delivers less value than a well-implemented one, regardless of platform. Clever Ops focuses on maximising your return through proper implementation and ongoing optimisation.

Both Constant Contact and Klaviyo provide standard security measures including encryption, access controls, and compliance certifications. Constant Contact uses a REST API and Klaviyo uses REST + Webhook, both supporting secure data transfer. For Australian businesses handling sensitive data under the Privacy Act, data residency and local support are worth verifying with each vendor. Clever Ops, based in Gippsland, Victoria, can review each platform's security posture against your compliance requirements during a free assessment.

Both Constant Contact and Klaviyo serve Hospitality & Tourism businesses. Constant Contact is also popular with Retail & E-commerce organisations, while Klaviyo is widely used in Retail & E-commerce. Clever Ops can advise based on what we have seen work for businesses like yours.

Full onboarding for either Constant Contact or Klaviyo, including configuration, data import, and team training, typically takes 4-8 weeks with Clever Ops support. Self-service onboarding can take longer and often results in suboptimal configurations that limit the platform's value.