Constant ContactTools to simplify and amplify digital marketing for small businesses
vs
KlaviyoKlaviyo is the autonomous CRM for B2C brands, built to turn what you know about your customers into real growth.
Comparison · Email Marketing · weekly run Nov 2
Constant Contact vs Klaviyo
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Klaviyo is the stronger AI pick in Email Marketing: it has a visibility score of 24 versus 18.9 for Constant Contact, and ranks ahead in 67% of the answers that name both.
Choose Constant Contact if…
- best for small businesses
- simple email campaigns for small businesses
- saves money with annual prepay discounts
- accessible campaign creation, automation and social tools
Choose Klaviyo if…
- You want the brand AI engines rank higher (24 vs 18.9)
- AI answers describe it more positively (55% vs 33% positive)
- You need SOC 2 Type II or ISO 27001 or ISO 27017 coverage
- Leading choice for ecommerce, Shopify and online stores
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Constant Contact | Klaviyo |
|---|---|---|
| Visibility score | 18.9% | 24% |
| Change vs last week | New | New |
| Rank in Email Marketing | #8 | #6 |
| Share of voice | 5.1% | 6.4% |
| Mentions this run | 26 | 33 |
| Positive in AI answers | 33% | 55% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Constant Contact 0pp · Klaviyo 0pp over 0 weekly runs.
Engine by engine
Klaviyo leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
Constant ContactKlaviyo
Head to head in AI answers
15 engine answers name both brands
5Constant Contact ranked higher
10Klaviyo ranked higher
| Prompt | Engine | Constant Contact | Klaviyo |
|---|---|---|---|
| What is an email marketing platform and when does a company need one? | ChatGPT | #3 | #4 |
| What are the best Email Marketing tools in 2026? | Perplexity | #10 | #3 |
| Which email marketing platform has the best reviews? | AI Mode | #5 | #3 |
| Which email marketing platform has the best reviews? | Perplexity | #2 | #5 |
| Compare the leading Email Marketing platforms | ChatGPT | #10 | #3 |
| Alternatives to the most popular email marketing platform | ChatGPT | #7 | #5 |
| Alternatives to the most popular email marketing platform | Perplexity | #11 | #4 |
| Most affordable email marketing platform that is still reliable | AI Mode | #2 | #8 |
| Which Email Marketing vendors do analysts recommend? | ChatGPT | #9 | #2 |
| Which Email Marketing vendors do analysts recommend? | Perplexity | #8 | #5 |
| How much does an email marketing platform cost per month? | ChatGPT | #3 | #5 |
| Which Email Marketing tools offer annual discounts? | AI Mode | #1 | #8 |
Features, pricing & fit
| Dimension | Constant Contact | Klaviyo |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Contact sales |
| Free plan | — | Yes |
| Deployment | Cloud-based | — |
| Integrations | — | 400+ |
| Compliance | — | SOC 2 Type II, ISO 27001, ISO 27017 |
| Support | — | Email support, Help Center and documentation, Klaviyo Academy courses, Klaviyo Community |
| Founded | 1996 | 2012 |
| Headquarters | Waltham, Massachusetts, USA | Boston, MA, United States |
| Employees | 1,001–5,000 | 1,001–5,000 |
| Funding | Funding round led by Clearlake-managed vehicle Icon Partners VI (amount not disclosed) | IPO |
| Best for | Small businesses and nonprofits | Ecommerce and direct-to-consumer brands that want email, SMS and customer data in one platform, from small businesses starting on the free plan to large enterprises. |
Plans side by side
Constant Contact
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Constant Contact
- best for small businesses
- simple email campaigns for small businesses
- saves money with annual prepay discounts
- accessible campaign creation, automation and social tools
- best for nonprofits and events
Klaviyo
- Leading choice for ecommerce, Shopify and online stores
- Deep data-driven behavioral automation and predictive analytics
- Email and SMS marketing for ecommerce brands
- Free to start with no credit card required
- Bills monthly only, with no standard annual billing discount
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Constant Contact vs Klaviyo”, https://slateindex.ai/compare/constant-contact-vs-klaviyo, data of Nov 2, 2026. Licence: CC BY 4.0.